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extending get attribute on selection

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This commit is contained in:
John McLear 2016-03-26 09:19:53 +08:00
parent 47f43e7094
commit 62be430203
2 changed files with 24 additions and 4 deletions
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10
doc/api/editorInfo.md
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@ -37,10 +37,16 @@ Returns the `rep` object.
## editorInfo.ace_isCaret(?) ## editorInfo.ace_isCaret(?)
## editorInfo.ace_getLineAndCharForPoint(?) ## editorInfo.ace_getLineAndCharForPoint(?)
## editorInfo.ace_performDocumentApplyAttributesToCharRange(?) ## editorInfo.ace_performDocumentApplyAttributesToCharRange(?)
## editorInfo.ace_setAttributeOnSelection(?) ## editorInfo.ace_setAttributeOnSelection(attribute, enabled)
Sets an attribute on current range.
Example: `call.editorInfo.ace_setAttributeOnSelection("turkey::balls", true); // turkey is the attribute here, balls is the value
Notes: to remove the attribute pass enabled as false
## editorInfo.ace_toggleAttributeOnSelection(?) ## editorInfo.ace_toggleAttributeOnSelection(?)
## editorInfo.ace_getAttributeOnSelection(attribute) ## editorInfo.ace_getAttributeOnSelection(attribute, prevChar)
Returns a boolean if an attribute exists on a selected range. Returns a boolean if an attribute exists on a selected range.
prevChar value should be true if you want to get the previous Character attribute instead of the current selection for example
if the caret is at position 0,1 (after first character) it's probable you want the attributes on the character at 0,0
The attribute should be the string name of the attribute applied to the selection IE subscript The attribute should be the string name of the attribute applied to the selection IE subscript
Example usage: Apply the activeButton Class to a button if an attribute is on a highlighted/selected caret position or range. Example usage: Apply the activeButton Class to a button if an attribute is on a highlighted/selected caret position or range.
Example: `call.editorInfo.ace_getAttributeOnSelection("subscript");` // call here is the callstack from aceEditEvent. Example: `call.editorInfo.ace_getAttributeOnSelection("subscript");` // call here is the callstack from aceEditEvent.

18
src/static/js/ace2_inner.js
View file

@ -449,6 +449,8 @@ function Ace2Inner(){
return oldEvent; return oldEvent;
} }
if(!evt) var evt = null;
currentCallStack = { currentCallStack = {
type: type, type: type,
docTextChanged: false, docTextChanged: false,
@ -2337,10 +2339,22 @@ function Ace2Inner(){
} }
editorInfo.ace_setAttributeOnSelection = setAttributeOnSelection; editorInfo.ace_setAttributeOnSelection = setAttributeOnSelection;
// Get the the attribute on selection
function getAttributeOnSelection(attributeName){ // prevChar tells the function if it needs to look at the previous character
function getAttributeOnSelection(attributeName, prevChar){
if (!(rep.selStart && rep.selEnd)) return if (!(rep.selStart && rep.selEnd)) return
// If we're looking for the caret attribute not the selection
if(prevChar){
// If it's not the start of the line
if(rep.selStart[1] !== 0){
rep.selStart[1]--;
}else{
// It's the start of the line so look at the first character
rep.selEnd[1]++;
}
}
var withIt = Changeset.makeAttribsString('+', [ var withIt = Changeset.makeAttribsString('+', [
[attributeName, 'true'] [attributeName, 'true']
], rep.apool); ], rep.apool);