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=== Document Gallery === |
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Contributors: dan.rossiter |
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Tags: attachments, thumbnail, documents, gallery, MS office, pdf |
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Donate link: https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=EE5LWRLG933EN&lc=US&item_name=Document%20Gallery%20Plugin&item_number=document%2dgallery¤cy_code=USD&bn=PP%2dDonationsBF%3abtn_donateCC_LG%2egif%3aNonHosted |
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Requires at least: 3.6 |
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Tested up to: 3.8.1 |
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Stable tag: 2.0.4 |
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License: GPLv2 |
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License URI: http://www.gnu.org/licenses/gpl-2.0.html |
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|
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This plugin generates thumbnails for documents and displays them in a |
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gallery-like format for easy sharing. |
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|
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== Description == |
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|
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This plugin allows the user to effortlessly create a gallery of documents and |
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other attached media, much like the gallery option already available for image |
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attachments. |
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|
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The plugin will, by default, inherit the styling within your active theme, but |
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with a little CSS knowledge it is possible to customize the appearance to meet |
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your specific needs. |
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|
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Read more in the **Installation** tab! |
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|
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= Developers = |
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|
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Document Gallery includes features intended to make integration with other plugins |
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simple. See the bottom of the **Installation** tab for specific documentation on |
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the various features provided. |
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|
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*If this plugin has helped you, please take a moment to [rate |
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it](http://wordpress.org/support/view/plugin-reviews/document-gallery#postform)!* |
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|
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== Installation == |
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|
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1. Upload `document-gallery` to the `/wp-content/plugins/` directory |
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1. Activate the plugin through the 'Plugins' menu in WordPress |
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1. Place `[dg]` in any posts or pages you want a document gallery included. See |
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below for additional display options. |
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|
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= Document Gallery Options = |
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|
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In order to include all compatible documents from a given page or post, you |
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must include the following shortcode in the post: `[dg]`. |
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|
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In addition to the default behavior, the plugin provides many options to |
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customize behavior with various attributes, seen below: |
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|
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`[dg [fancy=true] [attachment_pg=<true/false>] |
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[category/custom_taxon_name=<**comma-separated list of taxon values**> [relation=<AND/OR>]] |
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[descriptions=<true/false>] [ids=<**comma-separated list of ID #s**>] |
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[images=<true/false>] [localpost=<true/false>] [order=<ASC/DEC>] [orderby=<**see below**>]]` |
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|
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Though the shortcode above may seem far from "short," none of the attributes are |
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required and most users will find that the plugin meets your needs "out of the box" |
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without any added attributes. |
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|
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**Default Values** |
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|
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By default, document gallery will use `no descriptions`, `orderby menu_order` |
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, `ASC order`, `no attachment_pg links`, and `no images` from the `local post` |
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if you do not specify otherwise. These defaults can be configured in your dashboard |
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under `Settings -> Document Gallery`. |
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|
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**Attachment Page Option** *(New in Version 1.1)* |
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|
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This option determines whether each document icon will link to the actual file |
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or to its attachment page. If you want the user to be able to click on the |
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icon and directly rective the option to download then use `attachment_pg=false` |
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(the default). If you have information on the attachment page that you want the |
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link to go to, use `attachment_pg=true`. |
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|
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**Categories/Custom Taxonomy Option** *(New in Version 1.4)* |
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|
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With the `categories` option you are able to select attachments based on |
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their assigned category or any other |
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[custom taxon](http://codex.wordpress.org/Taxonomies). Categories |
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or any custom taxon can be referenced simply by including `category=category_value` |
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or `taxon_name=taxon_value`. Multiple values for a single taxon may be separated |
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by commas. |
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|
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**Descriptions Option** |
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|
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If `true`, each document will take its own line with the description displayed |
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alongside it. |
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|
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*Note: this will use the `description` field, **not** the `caption`. Be |
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careful when entering your document data.* |
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|
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**Fancy** *(New in Version 2.0)* |
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|
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If `true`, we will try to generate a thumbnail for each document in the gallery. |
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The success in generating thumbs will depend mostly on what your server supports. |
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To fine-tune how thumbnails are generated, visit `Settings -> Document Gallery` |
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in your site's dashboard. |
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|
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*NOTE: By default, the most universally-supported option for generating thumbnails, |
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[Google Drive Viewer](https://docs.google.com/viewer) is disabled by default |
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in order to protect your privacy, since using it requires sending your documents |
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to Google's servers. If you're not working with confidential documents, you are |
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encouraged to enable this for optimum performance.* |
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|
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**Order Option** |
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|
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This option works alongside the `orderby` option to determine whether the |
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documents are displayed in ascending or descending order. |
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|
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**Orderby Option** |
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|
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* `menu_order` - This is probably the one you want to use. Menu order is |
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the order that icons appear when seen in the Insert / Upload Media Gallery |
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dialog. To change this order, you simply drag the icons around until they |
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are where you want them. In earlier versions of WordPress, menu_order was |
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modified by the integer fields in the Insert / Upload Media Gallery dialog. |
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These fields no longer exist in recent releases. |
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* `title` - Order by title. |
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* `date` - Order by upload date. |
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* `modified` - Order by last modified date. |
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* `rand` - Random order. |
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* `ID` - Order by post id. |
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* `author` - Order by author. |
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* `name` - Order by attachment slug. |
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* `parent` - Order by post/page parent id. |
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(Only useful in conjunction with `localpost=false` option.) |
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* `comment_count` - Order by number of comments (available with WP >= 2.9). |
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* `none` - No order (available with Version 2.8). |
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* `post__in` - Preserve post ID order given in the post__in array. |
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|
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**Images Option** *(New in Version 1.2)* |
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|
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This option will tell the plugin to include all images attached to to a page or |
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post in addition to all documents. |
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|
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**IDs Option** *(New in Version 1.2)* |
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|
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This is an advanced option intended for experienced WordPress users. If this |
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option is used, the plugin will ignore attached documents, instead including |
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all attachments defined by the `ids` attribute (e.g.: `ids=10,2,4,42`). |
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|
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*Note: If this attribute is used, the `order`, `orderby`, `images` and other |
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attributes which generally determine which attachments to include or how to |
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order them will be ignored. Order is defined by the order the ids are |
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provided.* |
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|
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**Localpost Option** *(New in Version 1.4)* |
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|
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By default a document gallery only looks at attachments of the page/post where |
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the `[dg]` shortcode is used. If you would like to search beyond that local scope, |
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you must set `localpost=false`. |
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|
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This option would probably be useful especially when querying with the *category |
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or taxonomy* option, though it can be used with any options you chose. |
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|
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**Relation Option** *(New in Version 1.4)* |
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|
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The relation option should only be used when also using the *category or custom |
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taxonomy* option (see above). Additionally, this option is only effective in |
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WordPress installs version 3.1 or higher. Older versions cannot use this value |
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and will ignore it. |
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|
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When using multiple taxa, this option allows you to decide whether the attachments |
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returned must meet all of the taxa_names specified (AND) or a minimum of one |
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match (OR). |
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|
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= Customize Appearance = |
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|
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By default, the document gallery will use the styles within your active theme |
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to handle most of the appearance, but, with a little CSS knowledge, you can |
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customize pretty much anything about how it looks. See |
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[`style.css`](http://plugins.svn.wordpress.org/document-gallery/trunk/assets/css/style.css) |
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for an idea of what will select different elements within the gallery display. |
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|
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**Example** |
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|
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Say I would like to include a border for the right and bottom of the document |
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icon, but only when descriptions are shown (to delineate the icon from the |
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description text). To do this, I would need to add the following CSS to my |
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theme stylesheet: |
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|
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`.document-icon-wrapper.descriptions .document-icon{ |
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border-right: 1px solid #37824A; |
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border-bottom: 1px solid #37824A; |
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}` |
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|
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Now, if I wanted to modify that code to instead add the same border to all of |
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the document-icons, regardless of whether they have a description or not, I |
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would just change the first line, removing the descriptions class like so: |
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|
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`.document-icon-wrapper .document-icon` |
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|
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*NOTE: Please don't modify the plugin stylesheet directly or your changes will |
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be lost when a new version is released.* |
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|
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= Developers = |
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|
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**Filter .document-icon Content** |
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|
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For those unfamiliar with content filters, [here is some |
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documentation](http://codex.wordpress.org/Plugin_API/Filter_Reference) that you |
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should read before continuing. |
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|
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Document Gallery implements its own filter, allowing developers to customize |
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the output generated. Specifically, the `div.document-icon` content, including |
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the div itself, the URL to the attachment, the attachment icon, and the |
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attachment title. Hooking into the `dg_doc_icon` filter will allow you to |
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modify any of this content before it reaches your users. |
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|
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Any function using this filter will receive two parameters, the content to be |
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filtered and the ID number of the file represented by the icon in question. |
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If you are implementing something to override the plugin default functionality, |
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it may be useful to be able to query various attributes of the attachment with |
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this value. |
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|
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One example use for this filter, which I have personally used in a project I |
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am working on, will add a query parameter to the end of each attachment URL. |
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This parameter, `rid`, specifies the referring page and allows the page |
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receiving the URL to dynamically detect which page ID the link came from. |
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|
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`function dg_doc_icon( $icon, $id ){ |
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$ptn = '/(.* href=")([^"]+)(".*)/s'; |
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|
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if( !preg_match( $ptn, $icon, $matches ) || count( $matches ) !== 4 ) |
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return $icon; |
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|
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if( strpos( $matches[2], '?' ) !== false ) |
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return "{$matches[1]}{$matches[2]}&rid=".get_the_ID().$matches[3]; |
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|
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return "{$matches[1]}{$matches[2]}?rid=".get_the_ID().$matches[3]; |
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} |
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add_filter( 'dg_doc_icon', 'dg_doc_icon', null, 2 );` |
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|
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Obviously this is just one very specific example, but anything that requires |
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modifying the image tag, the anchor tag, or the title can be handled with this |
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filter. Note that this function does not use the $id value it receives, which |
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is perfectly alright. |
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|
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== Frequently Asked Questions == |
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|
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= Q: Why is -insert thumbnail generation method- enabled on one of my WordPress |
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installs, but not on another one? = |
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|
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A: Document Gallery works very hard behind the scenes to ensure that it enables |
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as much as is possible for any given server, but some servers just can't do |
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some of the things that the plugin supports. Document Gallery detects when a |
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server can't do something (run Ghostscript, for example) and disables that option. |
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If you later modify your server to handle one of the thumbnail generation methods, |
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Document Gallery will notice this and re-enable the option on the settings page, |
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though you will need to go in and tell Document Gallery that it should use this |
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newly-enabled method. |
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|
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= Q: Why is Ghostscript so much faster than Imagick? = |
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|
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A: This comes down to how the two programs work. Imagick actually delegates |
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handling of PDFs to Ghostscript behind the scenes, but it doesn't do so |
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intelligently. Before passing off the PDF, it first reads the entire contents |
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of the PDF into memory. Since we only need a single page to generate the |
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thumbnail, this is much more work than is needed. Ghostscript, on the other hand, |
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can handle reading only one page into memory, thus doing much less work before |
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returning our thumbnail. |
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|
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= Q: Why isn't Google Drive Viewer enabled by default? = |
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|
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A: Google Drive Viewer is the most commonly-supported thumbnail generation method, |
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alongside the Audio/Video generation, but is disabled by default. The reason |
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for this is that in order to use this method, Document Gallery has to send your |
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document over to Google's servers, where Google will generate the thumbnail for |
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you. For most users, this shouldn't be a big deal, but since some users |
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retain sensitive documents on their site, this was made opt-in to avoid |
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compromising anyone's security. If you don't have sensitive documents, I |
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would recommend enabling it, since it's currently the only way to generate a |
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thumbnail for any of the Microsoft Office files, as well as some less common |
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file types. |
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|
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== Screenshots == |
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|
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1. This is an example of "fancy" thumbnails. The images are a copy of the front |
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page for each document. |
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2. This is an example of multiple Document Galleries on a single page (using |
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the `ids` attribute). It also shows how images will appear in a Document |
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Gallery. Note that the description field supports HTML markup, so the |
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possibilities are endless! |
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3. This is how the Document Gallery looks with `descriptions=false` (default). |
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Note that the display inherits styling from your active theme. |
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|
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== Changelog == |
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|
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= Features For The Future = |
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|
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* Full integration with the new [Wordpress 3.5 Media |
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Manager](http://codex.wordpress.org/Version_3.5#Highlights). |
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* Option to open music or video files directly from your gallery. |
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* Option to open documents directly from your gallery (à la [Google Drive |
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Viewer](https://drive.google.com/viewer)). |
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* Support for adding your own filetypes/icons. |
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* Whatever else **you** would like (post on the [support |
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forum](http://wordpress.org/support/plugin/document-gallery) if you have |
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ideas)! |
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|
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= 2.0.4 = |
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* **Enhancement:** Custom CSS is now loaded faster, meaning faster page loads |
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for your users. Tests are showing a speedup of around 30% over where it was |
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in the last release. |
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* **Enhancement:** All of the default icons were sent through |
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[Yahoo! Smush.it](http://www.smushit.com/ysmush.it/), giving a few percentage |
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points decrease in size. Thanks for the suggestion, |
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[wm](http://wordpress.org/support/profile/webbmasterpianise)! |
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|
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= 2.0.3 = |
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* **Enhancement:** Now handles custom user CSS more securely. |
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* **Enhancement:** Now handles calling Ghostscript executable more securely. |
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* **Enhancement:** Now provides timing information for gallery generation |
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when running WordPress in [WP_DEBUG](https://codex.wordpress.org/WP_DEBUG) |
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mode. When enabled, DG will log to the PHP error log file. |
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* **Info:** Did you know that in tests I performed, Ghostscript (GS) performed |
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350% faster than using Imagick (IM)? Try testing with |
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[this file](http://www.open-std.org/jtc1/sc22/wg14/www/docs/n1570.pdf), |
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which finished almost instantly using GS, but took multiple minutes when |
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using IM on my test server (results may vary). See new FAQ tab to find out why. |
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|
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= 2.0.2 = |
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* **Bug Fix:** Imagick was actually never working... My bad -- it is now! Thanks to |
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[kaldimar](http://wordpress.org/support/profile/kaldimar) for reporting this. |
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* **Enhancement:** Document Gallery en el Español por Andrew de |
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[WebHostingHub](http://www.webhostinghub.com/). (To help translate to another |
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language, [see here](http://wordpress.org/support/topic/seeking-translators).) |
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|
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= 2.0.1 = |
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* **Bug Fix:** Resolves issue with `2.0` where DG options were not properly |
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initialized when the plugin was updated. This caused the settings page to |
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behave oddly and many other things throughout to not work as expected when |
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you updated through the dashboard. Thanks to jawhite & rigbypa for |
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[reporting this](http://wordpress.org/support/topic/errors-after-updating-to-20)! |
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|
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= 2.0 = |
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* **Enhancement:** This release is a **BIG** deal! We are introducing true |
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document thumbnails (rather than the boring static images that were the same |
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for every document), meaning that you will be able to generate and display |
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thumbnails for most of your documents so your users can see a preview of the |
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document before downloading. This has been |
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[months in development](http://wordpress.org/support/topic/pdf-thumbnails-instead-of-generic-icon) |
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and I really hope that you all enjoy it! |
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* **Enhancement:** Document Gallery now has a settings page where you can |
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configure the default options for your galleries and chose how thumbnails are |
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generated. |
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* **Enhancement:** Customizing CSS for your document gallery is now *much easier*. |
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If you want to add additional styling, just navigate to `Settings -> Document Gallery` |
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in your dashboard and enter valid CSS in the "Custom CSS" textbox. See the changes |
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instantly in your galleries! |
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* **Enhancement:** Entire plugin is now |
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[Internationalization-enabled](https://codex.wordpress.org/I18n_for_WordPress_Developers). |
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This means that we can now support users speaking all languages. If you are |
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interested in translating Document Gallery into a language that you speak, |
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please [let me know](http://wordpress.org/support/topic/seeking-translators)! |
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* **Enhancement:** This release saw much of the backend refactored to better |
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support future development. Nothing you will notice unless you're digging into |
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the code, but it will keep me sane long-term ;) |
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* **Note:** The thumbnail generation implementation works very hard to support |
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all hosting servers (including Unix and Windows systems). That said, I cannot |
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test on all hosts out there, so there is the potential for bugs to appear. |
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If you notice something that doesn't look right, please don't hesitate to |
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[report the issue](http://wordpress.org/support/plugin/document-gallery) |
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so that I can resolve it. Thanks! |
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|
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= 1.4.3 = |
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* **Bug Fix:** Resolves minor bug introduced in version 1.4.2. Thanks, tkokholm! |
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|
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= 1.4.2 = |
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* **Note:** This release includes an increase in the minimum WP version to 3.5. |
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If you have not yet upgraded to at least this version, you should consider doing |
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so as future releases include a number of *fantastic* new features as well as |
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many security improvements. If you chose not to upgrade, you must stay with |
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Document Gallery 1.4.1 or lower until you do. Sorry for the inconvenience! |
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* **Bug Fix:** Resolved icons being displayed differently depending on which |
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user was currently logged in. (Thanks to |
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[Sean](http://wordpress.org/support/topic/error-after-update-19?replies=12#post-5041251) |
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for reporting the issue.) |
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* **Enhancement:** A number of new icons were added (mainly for the iWork suite |
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and source code filetypes) and a number of pre-existing icons were removed if |
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they were very similar to another icon. |
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* **Under The Hood:** Many, many cool things. Stay tuned for a big reveal in the |
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coming weeks! |
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PS: If you're really curious, there are some clues in the source code ;) |
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|
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= 1.4.1 = |
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* **Bug Fix:** This resolves a bug introduced in `1.4`, which caused a warning |
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to be thrown when no attributes were used (i.e.: `[dg]`). (Thanks to |
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[wtfbingo](http://wordpress.org/support/topic/error-after-update-19) for |
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pointing this out!) |
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|
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= 1.4 = |
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|
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* **New Feature:** This release features the addition of *category/taxonomy* support, |
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[as suggested by Pyo](http://wordpress.org/support/topic/sorting-documents-by-categorytag-or-other-taxonomy). |
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* **Under The Hood:** The plugin was completely rewritten for this release. Logic |
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was cleaned up to make maintenance easier and facilitate some *big* changes |
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planned for version 2.0 of Document Gallery. |
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|
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= 1.3.1 = |
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|
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* **Bug Fix:** This resolves a bug introduced in version `1.3`. (Thanks to JKChad |
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for pointing this out!) |
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|
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= 1.3 = |
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|
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* **New Feature:** It is now possible to filter the HTML produced to represent |
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each individual icon, making it possible to add extra attributes and other |
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modifications on the fly as document icons are generated. This will probably |
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only be of use to developers and people who don't mind getting their hands |
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dirty. *(See bottom **Installation** tab for more details.)* |
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* **Enhancement:** There have been a lot of optimizations to the underlying |
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plugin code to make it run more efficiently and be easier to read, if you |
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are so inclined. |
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* **Enhancement:** Changed how images, when included within the gallery, are |
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generated so that the format of the icon returned now matches the rest of |
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the icons. |
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|
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= 1.2.1 = |
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|
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* **Bug Fix:** Resolved issue with the `ids` attribute in `1.2` not working. |
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Sorry about that! |
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|
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= 1.2 = |
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|
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* **New Feature:** Images can now be included alongside documents in a |
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document gallery (using `images=true` attribute). |
| 427 |
(Thanks for the suggestion, Luca!) |
| 428 |
* **New Feature:** Attachment ids can now be explicitly listed, allowing for |
| 429 |
documents not attached to a post or page to be included in a document |
| 430 |
gallery (e.g.: `ids=2,42,57,1`). Note that no spaces should be included. |
| 431 |
* **Enhancement:** The CSS stylesheet has been enhanced for more flexibility |
| 432 |
in sizing icons. |
| 433 |
|
| 434 |
= 1.1 = |
| 435 |
|
| 436 |
* **New Feature:** Included option to link to the attachment page as well as |
| 437 |
to the actual document. |
| 438 |
* **Enhancement:** Added documentation for customizing the appearance of the plugin. |
| 439 |
* **Enhancement:** Many improvements to the backend, including pretty HTML output |
| 440 |
and best practice implementation in calls to WordPress core functions. |
| 441 |
|
| 442 |
= 1.0.4 = |
| 443 |
|
| 444 |
* **Bug Fix:** Removed extra `div` at bottom when number of documents is |
| 445 |
evenly divisible by 4. (Thanks, joero4ri!) |
| 446 |
|
| 447 |
= 1.0.3 = |
| 448 |
|
| 449 |
* **Bug Fix:** Resolved issue with detecting plugin directory. (Thanks, |
| 450 |
Brigitte!) |
| 451 |
* **Enhancement:** Minor improvement to how linking to individual |
| 452 |
documents is handled. |
| 453 |
|
| 454 |
= 1.0.2 = |
| 455 |
|
| 456 |
* **Bug Fix:** Merge for changes in 1.0 did not go through correctly so users |
| 457 |
downloaded the old icon set which broke the plugin. Sorry about that, but |
| 458 |
all is resolved with this release! |
| 459 |
|
| 460 |
= 1.0.1 = |
| 461 |
|
| 462 |
* **Bug Fix:** Resolved issue with long document titles being cut off in some themes. |
| 463 |
|
| 464 |
= 1.0 = |
| 465 |
|
| 466 |
* **New Feature:** Plugin now has **36 icons** representing **72 filetypes**! |
| 467 |
* **Enhancement:** Optimized gallery generation (faster!) |
| 468 |
* **Enhancement:** Added fallback to WordPress default icons if you happen to |
| 469 |
include one of the few filetypes not yet supported. |
| 470 |
* **Enhancement:** Changed shortcode to `[dg]` (`[document gallery]` will still |
| 471 |
work for backward compatibility). |
| 472 |
* **Enhancement:** Gave documentation some **much needed** revisions. |
| 473 |
|
| 474 |
= 0.8.5 = |
| 475 |
|
| 476 |
* **Enhancement:** Added support for |
| 477 |
[OpenDocuments](http://en.wikipedia.org/wiki/OpenDocument). |
| 478 |
|
| 479 |
= 0.8 = |
| 480 |
|
| 481 |
* **Release:** First public release of Document Gallery. |
| 482 |
* **Feature:** Displays PDF, Word, PowerPoint, Excel, and ZIP documents from a |
| 483 |
given page or post. |
| 484 |
* **Feature:** Documents can be ordered by a number of |
| 485 |
different factors. |
