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Start of new thorough code documentation effort 

git-svn-id: http://svg-edit.googlecode.com/svn/trunk@1608 eee81c28-f429-11dd-99c0-75d572ba1ddd
master
Alexis Deveria 2010-06-18 20:51:58 +00:00
parent f561211268
commit e4d8d5e406
1 changed files with 31 additions and 6 deletions
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35
editor/svgcanvas.js
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@ -214,10 +214,9 @@ var isOpera = !!window.opera,
// Usually an attribute change, but can also be textcontent.
//
// Parameters:
// elem - The DOM element to be changed
// elem - The DOM element that was changed
// attrs - An object with the attributes to be changed and the values they had *before* the change
// text - An optional string visible to user related to this change
function ChangeElementCommand(elem, attrs, text) {
this.elem = elem;
this.text = text ? ("Change " + elem.tagName + " " + text) : ("Change " + elem.tagName);
@ -271,6 +270,8 @@ function ChangeElementCommand(elem, attrs, text) {
return true;
};
// Function: ChangeElementCommand.unapply
// Reverses the stored change action
this.unapply = function() {
var bChangedTransform = false;
for(var attr in this.oldValues ) {
@ -313,14 +314,24 @@ function ChangeElementCommand(elem, attrs, text) {
return true;
};
// Function: ChangeElementCommand.elements
// Returns array with element associated with this command
this.elements = function() { return [this.elem]; }
}
// Function: InsertElementCommand
// History command for an element that was added to the DOM
//
// Parameters:
// elem - The newly added DOM element
// text - An optional string visible to user related to this change
function InsertElementCommand(elem, text) {
this.elem = elem;
this.text = text || ("Create " + elem.tagName);
this.parent = elem.parentNode;
// Function: InsertElementCommand.apply
// Re-Inserts the new element
this.apply = function() {
this.elem = this.parent.insertBefore(this.elem, this.elem.nextSibling);
if (this.parent == svgcontent) {
@ -328,6 +339,8 @@ function InsertElementCommand(elem, text) {
}
};
// Function: InsertElementCommand.unapply
// Removes the element
this.unapply = function() {
this.parent = this.elem.parentNode;
this.elem = this.elem.parentNode.removeChild(this.elem);
@ -336,16 +349,25 @@ function InsertElementCommand(elem, text) {
}
};
// Function: InsertElementCommand.elements
// Returns array with element associated with this command
this.elements = function() { return [this.elem]; };
}
// this is created for an element that has or will be removed from the DOM
// (creating this object does not remove the element from the DOM itself)
// Function: RemoveElementCommand
// History command for an element removed from the DOM
//
// Parameters:
// elem - The removed DOM element
// elem - The DOM element's parent
// text - An optional string visible to user related to this change
function RemoveElementCommand(elem, parent, text) {
this.elem = elem;
this.text = text || ("Delete " + elem.tagName);
this.parent = parent;
// Function: RemoveElementCommand.apply
// Re-removes the new element
this.apply = function() {
if (svgTransformLists[this.elem.id]) {
delete svgTransformLists[this.elem.id];
@ -358,6 +380,8 @@ function RemoveElementCommand(elem, parent, text) {
}
};
// Function: RemoveElementCommand.unapply
// Re-adds the new element
this.unapply = function() {
if (svgTransformLists[this.elem.id]) {
delete svgTransformLists[this.elem.id];
@ -369,13 +393,14 @@ function RemoveElementCommand(elem, parent, text) {
}
};
// Function: RemoveElementCommand.elements
// Returns array with element associated with this command
this.elements = function() { return [this.elem]; };
// special hack for webkit: remove this element's entry in the svgTransformLists map
if (svgTransformLists[elem.id]) {
delete svgTransformLists[elem.id];
}
}
function MoveElementCommand(elem, oldNextSibling, oldParent, text) {