mediawiki-extensions-Visual.../modules/ve/ve.Surface.js
Ed Sanders fdf30b1ac8 Store data in LinearData class with an index-value store for objects
Created an IndexValueStore class which can store any object and return
an integer index to its hash map.

Linear data is now stored in ve.dm.LinearData instances. Two subclasses
for element and meta data contain methods specific to those data types
(ElementLinearData and MetaLinearData).

The static methods in ve.dm.Document that inspected data at a given
offset are now instance methods of ve.dm.ElementLinearData.

AnnotationSets (which are no longer OrderedHashSets) have been moved
to /dm and also have to be instantiated with a pointer the store.

Bug: 46320
Change-Id: I249a5d48726093d1cb3e36351893f4bff85f52e2
2013-03-30 10:06:34 +00:00

386 lines
10 KiB
JavaScript

/*!
* VisualEditor Surface class.
*
* @copyright 2011-2013 VisualEditor Team and others; see AUTHORS.txt
* @license The MIT License (MIT); see LICENSE.txt
*/
/**
* A surface is a top-level object which contains both a surface model and a surface view.
*
* @example
* new ve.Surface(
* new ve.init.sa.Target( $( '<div>' ).appendTo( document.body ) ),
* ve.createDocumentFromHTML( '<p>Hello world.</p>' )
* );
*
* @class
*
* @constructor
* @param {ve.init.Target} target Integration target to add views to
* @param {HTMLDocument} doc HTML document to edit
* @param {Object} options Configuration options
*/
ve.Surface = function VeSurface( target, doc, options ) {
// Properties
this.$ = $( '<div>' );
this.$overlay = $( '<div>' );
this.target = target;
this.documentModel = new ve.dm.Document( doc );
this.options = ve.extendObject( true, ve.Surface.defaultOptions, options );
this.model = new ve.dm.Surface( this.documentModel );
this.view = new ve.ce.Surface( this.$, this.model, this );
this.context = new ve.ui.Context( this );
this.dialogs = new ve.ui.WindowSet( this, ve.ui.dialogFactory );
this.toolbars = {};
this.commands = {};
this.enabled = true;
// Initialization
this.$.addClass( 've-surface' ).appendTo( this.target.$ );
this.$overlay
.addClass( 've-surface-overlay' )
.append( this.context.$, this.dialogs.$ )
.appendTo( $( 'body' ) );
this.view.getDocument().getDocumentNode().setLive( true );
this.setupToolbars();
this.setupCommands();
this.resetSelection();
ve.instances.push( this );
this.model.startHistoryTracking();
// Turn off native object editing. This must be tried after the surface has been added to DOM.
try {
document.execCommand( 'enableObjectResizing', false, false );
document.execCommand( 'enableInlineTableEditing', false, false );
} catch ( e ) { /* Silently ignore */ }
};
/* Static Properties */
ve.Surface.defaultOptions = {
'toolbars': {
'top': {
'float': true,
'tools': [
{ 'name': 'history', 'items' : ['undo', 'redo'] },
{ 'name': 'textStyle', 'items' : ['format'] },
{ 'name': 'textStyle', 'items' : ['bold', 'italic', 'link', 'clear'] },
{ 'name': 'list', 'items' : ['number', 'bullet', 'outdent', 'indent'] }
]
}
},
// Items can either be symbolic names or objects with trigger and action properties
'commands': ['bold', 'italic', 'link', 'undo', 'redo', 'indent', 'outdent']
};
/* Methods */
/**
* Get the surface model.
*
* @method
* @returns {ve.dm.Surface} Surface model
*/
ve.Surface.prototype.getModel = function () {
return this.model;
};
/**
* Get the document model.
*
* @method
* @returns {ve.dm.Document} Document model
*/
ve.Surface.prototype.getDocumentModel = function () {
return this.documentModel;
};
/**
* Get the surface view.
*
* @method
* @returns {ve.ce.Surface} Surface view
*/
ve.Surface.prototype.getView = function () {
return this.view;
};
/**
* Get the context menu.
*
* @method
* @returns {ve.ui.Context} Context user interface
*/
ve.Surface.prototype.getContext = function () {
return this.context;
};
/**
* Destroy the surface, releasing all memory and removing all DOM elements.
*
* @method
* @returns {ve.ui.Context} Context user interface
*/
ve.Surface.prototype.destroy = function () {
ve.instances.splice( ve.instances.indexOf( this ), 1 );
this.$.remove();
this.view.destroy();
this.context.destroy();
};
/**
* Disable editing.
*
* @method
*/
ve.Surface.prototype.disable = function () {
this.view.disable();
this.model.disable();
this.enabled = false;
};
/**
* Enable editing.
*
* @method
*/
ve.Surface.prototype.enable = function () {
this.enabled = true;
this.view.enable();
this.model.enable();
};
/**
* Check if editing is enabled.
*
* @method
* @returns {boolean} Editing is enabled
*/
ve.Surface.prototype.isEnabled = function () {
return this.enabled;
};
/**
* Fix up the initial selection.
*
* Reselect the selection and force a poll. This forces the selection to be something reasonable.
* In Firefox, the initial selection is (0,0), which causes problems (bug 42277).
*
* @method
*/
ve.Surface.prototype.resetSelection = function () {
this.model.getFragment().select();
this.view.surfaceObserver.poll();
};
/**
* Execute an action or command.
*
* @method
* @param {string|ve.Trigger} action Name of action or command object
* @param {string} [method] Name of method
* @param {Mixed...} [args] Additional arguments for action
* @returns {boolean} Action or command was executed
*/
ve.Surface.prototype.execute = function ( action, method ) {
if ( !this.enabled ) {
return;
}
var trigger, obj, ret;
if ( action instanceof ve.Trigger ) {
trigger = action.toString();
if ( trigger in this.commands ) {
return this.execute.apply( this, this.commands[trigger] );
}
} else if ( typeof action === 'string' && typeof method === 'string' ) {
// Validate method
if ( ve.actionFactory.doesActionSupportMethod( action, method ) ) {
// Create an action object and execute the method on it
obj = ve.actionFactory.create( action, this );
ret = obj[method].apply( obj, Array.prototype.slice.call( arguments, 2 ) );
return ret === undefined || !!ret;
}
}
return false;
};
/**
* Add all commands from initialization options.
*
* Commands must be registered through {ve.commandRegsitry} prior to constructing the surface.
* Setup Triggers registered through {ve.triggerRegistry} prior to constructing the surface.
* Add listener method to {ve.triggerRegistry} to lazy load triggers.
*
* @method
* @param {string[]} commands Array of symbolic names of registered commands
*/
ve.Surface.prototype.setupCommands = function () {
var i, len, command,
commands = this.options.commands,
surface = this;
function loadTriggers( triggers, command ) {
var i, len, trigger;
if ( !ve.isArray( triggers ) ) {
triggers = [triggers];
}
for ( i = 0, len = triggers.length; i < len; i++ ) {
// Normalize
trigger = triggers[i].toString();
// Validate
if ( trigger.length === 0 ) {
throw new Error( 'Incomplete trigger: ' + triggers[i] );
}
surface.commands[trigger] = command.action;
}
}
for ( i = 0, len = commands.length; i < len; i++ ) {
command = ve.commandRegistry.lookup( commands[i] );
if ( !command ) {
throw new Error( 'No command registered by that name: ' + commands[i] );
}
loadTriggers( ve.triggerRegistry.lookup( commands[i] ), command );
}
// Bind register event to lazy load triggers
ve.triggerRegistry.on( 'register', function ( name, trigger ) {
loadTriggers( trigger, ve.commandRegistry.lookup( name ) );
} );
};
/**
* Initialize the toolbar.
*
* This method uses {this.options} for its configuration.
*
* @method
*/
ve.Surface.prototype.setupToolbars = function () {
var name, config, toolbar,
toolbars = this.options.toolbars;
for ( name in toolbars ) {
config = toolbars[name];
if ( ve.isPlainObject( config ) ) {
this.toolbars[name] = toolbar = { '$': $( '<div class="ve-ui-toolbar"></div>' ) };
if ( name === 'top' ) {
// Add extra sections to the toolbar
toolbar.$.append(
'<div class="ve-ui-actions"></div>' +
'<div style="clear:both"></div>' +
'<div class="ve-ui-toolbar-shadow"></div>'
);
// Wrap toolbar for floating
toolbar.$wrapper = $( '<div class="ve-ui-toolbar-wrapper"></div>' )
.append( this.toolbars[name].$ );
// Add toolbar to surface
this.$.before( toolbar.$wrapper );
if ( 'float' in config && config.float === true ) {
// Float top toolbar
this.floatTopToolbar();
}
}
toolbar.instance = new ve.ui.Toolbar( toolbar.$, this, config.tools );
}
}
};
/*
* Move the toolbar to the top of the screen if it would normally be out of view.
*
* TODO: Determine if this would be better in ui.toolbar vs here.
* TODO: This needs to be refactored so that it only works on the main editor top tool bar.
*
* @method
*/
ve.Surface.prototype.floatTopToolbar = function () {
if ( !this.toolbars.top ) {
return;
}
var $wrapper = this.toolbars.top.$wrapper,
$toolbar = this.toolbars.top.$,
$window = $( window );
$window.on( {
'resize': function () {
if ( $wrapper.hasClass( 've-ui-toolbar-wrapper-floating' ) ) {
var toolbarsOffset = $wrapper.offset(),
left = toolbarsOffset.left,
right = $window.width() - $wrapper.outerWidth() - left;
$toolbar.css( {
'left': left,
'right': right
} );
}
},
'scroll': function () {
var left, right,
toolbarsOffset = $wrapper.offset(),
$editorDocument = $wrapper.parent().find('.ve-surface .ve-ce-documentNode'),
$lastBranch = $editorDocument.children( '.ve-ce-branchNode:last' );
if ( $window.scrollTop() > toolbarsOffset.top ) {
left = toolbarsOffset.left;
right = $window.width() - $wrapper.outerWidth() - left;
// If not floating, set float
if ( !$wrapper.hasClass( 've-ui-toolbar-wrapper-floating' ) ) {
$wrapper
.css( 'height', $wrapper.height() )
.addClass( 've-ui-toolbar-wrapper-floating' );
$toolbar.css( {
'left': left,
'right': right
} );
} else {
// Toolbar is floated
if (
// There's at least one branch
$lastBranch.length &&
// Toolbar is at or below the top of last node in the document
$window.scrollTop() + $toolbar.height() >= $lastBranch.offset().top
) {
if ( !$wrapper.hasClass( 've-ui-toolbar-wrapper-bottom' ) ) {
$wrapper
.removeClass( 've-ui-toolbar-wrapper-floating' )
.addClass( 've-ui-toolbar-wrapper-bottom' );
$toolbar.css({
'top': $window.scrollTop() + 'px',
'left': left,
'right': right
});
}
} else { // Unattach toolbar
if ( $wrapper.hasClass( 've-ui-toolbar-wrapper-bottom' ) ) {
$wrapper
.removeClass( 've-ui-toolbar-wrapper-bottom' )
.addClass( 've-ui-toolbar-wrapper-floating' );
$toolbar.css( {
'top': 0,
'left': left,
'right': right
} );
}
}
}
} else { // Return toolbar to top position
if (
$wrapper.hasClass( 've-ui-toolbar-wrapper-floating' ) ||
$wrapper.hasClass( 've-ui-toolbar-wrapper-bottom' )
) {
$wrapper.css( 'height', 'auto' )
.removeClass( 've-ui-toolbar-wrapper-floating' )
.removeClass( 've-ui-toolbar-wrapper-bottom' );
$toolbar.css( {
'top': 0,
'left': 0,
'right': 0
} );
}
}
}
} );
};