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- Initial stuff to support text selection on slides

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- Pointer sync issue still unresolved, but happens only when moving slide

git-svn-id: http://bigbluebutton.googlecode.com/svn/trunk@3245 af16638f-c34d-0410-8cfa-b39d5352b314
This commit is contained in:
Denis Zgonjanin 2010-01-08 23:52:23 +00:00
parent cf756c450d
commit 970ca11b61
1 changed files with 102 additions and 46 deletions
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144
bigbluebutton-client/src/org/bigbluebutton/modules/present/views/SlideView.mxml
View File

@ -27,18 +27,20 @@
xmlns:panzoom="com.adobe.wheelerstreet.fig.panzoom.*" xmlns:local="*"
resize="onResize()" xmlns:mate="http://mate.asfusion.com/" rollOut="hideCursor()">
<mate:Listener type="{ZoomEvent.ZOOM}" method="handleZoomEvent" />
<mate:Listener type="{ZoomEvent.RESTORE}" method="handleRestoreSlideEvent" />
<mate:Listener type="{MoveEvent.MOVE}" method="handleMoveEvent" />
<mate:Listener type="{ZoomEvent.ZOOM}" method="zoomCallback" />
<mate:Listener type="{ZoomEvent.RESTORE}" method="restoreSlideSize" />
<mate:Listener type="{MoveEvent.MOVE}" method="moveCallback" />
<mate:Listener type="{SlideEvent.SLIDE_LOADED}" method="handleSlideLoadedEvent" />
<mate:Listener type="{MadePresenterEvent.SWITCH_TO_PRESENTER_MODE}" method="handleSwitchToPresenterEvent" />
<mate:Listener type="{MadePresenterEvent.SWITCH_TO_VIEWER_MODE}" method="handleSwitchToViewerEvent" />
<mate:Listener type="{CursorEvent.UPDATE_CURSOR}" method="handleUpdateCursorEvent" />
<mate:Listener type="{ZoomEvent.RESIZE}" method="handleResizeSlideEvent" />
<mate:Listener type="{MadePresenterEvent.SWITCH_TO_PRESENTER_MODE}" method="switchToPresenter" />
<mate:Listener type="{MadePresenterEvent.SWITCH_TO_VIEWER_MODE}" method="switchToViewer" />
<mate:Listener type="{CursorEvent.UPDATE_CURSOR}" method="updateCursorCallback" />
<mate:Listener type="{ZoomEvent.RESIZE}" method="resizeSlide" />
<mx:Script>
<![CDATA[
import org.bigbluebutton.modules.present.events.CursorEvent;
import mx.controls.Alert;
import org.bigbluebutton.main.events.MadePresenterEvent;
import org.bigbluebutton.modules.present.events.SlideEvent;
import org.bigbluebutton.modules.present.events.MoveEvent;
@ -60,12 +62,17 @@
private var yPercent:Number;
private var cursor:Shape;
//The following few variables concern text selection
private var slideClip:MovieClip;
private var slideText:TextSnapshot;
private var firstChar:Number = -1;
private var lastChar:Number = -1;
[Bindable] public var slides:ArrayCollection;
[Bindable] public var selectedSlide:int=0;
[Bindable] private var isPresenter:Boolean = false;
private function init():void {
private function init():void{
myLoader.width = imageCanvas.width;
myLoader.height = imageCanvas.height;
@ -76,21 +83,21 @@
cursor.visible = false;
}
private function onZoom(e:MouseEvent):void {
private function zoom(e:MouseEvent):void{
var presentEvent:PresenterCommands = new PresenterCommands(PresenterCommands.ZOOM);
presentEvent.zoomPercentage = e.delta/100;
dispatchEvent(presentEvent);
}
private function onMouseDown(e:MouseEvent):void{
private function mouseDown(e:MouseEvent):void{
startDragX = myLoader.content.x;
startDragY = myLoader.content.y;
startDragMouseX = imageCanvas.mouseX;
startDragMouseY = imageCanvas.mouseY;
addEventListener(MouseEvent.MOUSE_MOVE, onMouseMove);
addEventListener(MouseEvent.MOUSE_MOVE, mouseMove);
}
private function onMouseMove(e:MouseEvent):void{
private function mouseMove(e:MouseEvent):void{
var newX:Number = startDragX + (imageCanvas.mouseX - startDragMouseX);
var newY:Number = startDragY + (imageCanvas.mouseY - startDragMouseY);
@ -103,36 +110,35 @@
dispatchEvent(presentEvent);
}
private function onMouseUp(e:MouseEvent):void {
removeEventListener(MouseEvent.MOUSE_MOVE, onMouseMove);
private function mouseUp(e:MouseEvent):void{
removeEventListener(MouseEvent.MOUSE_MOVE, mouseMove);
}
private function onMouseOut(e:MouseEvent):void {
removeEventListener(MouseEvent.MOUSE_MOVE, onMouseMove);
private function mouseOut(e:MouseEvent):void{
removeEventListener(MouseEvent.MOUSE_MOVE, mouseMove);
}
public function onResize():void {
public function onResize():void{
if (myLoader.content == null) return;
myLoader.width = myLoader.content.width;
myLoader.height = myLoader.content.height;
}
private function handleZoomEvent(e:ZoomEvent):void {
private function zoomCallback(e:ZoomEvent):void{
myLoader.content.scaleX += e.zoomPercentage;
myLoader.content.scaleY += e.zoomPercentage;
myLoader.width = myLoader.content.width;
myLoader.height = myLoader.content.height;
}
private function handleResizeSlideEvent(e:ZoomEvent):void {
private function resizeSlide(e:ZoomEvent):void{
myLoader.content.scaleX = e.zoomPercentage;
myLoader.content.scaleY = e.zoomPercentage;
myLoader.width = myLoader.content.width;
myLoader.height = myLoader.content.height;
}
private function handleMoveEvent(e:MoveEvent):void {
LogUtil.debug("Handling moveEvent");
private function moveCallback(e:MoveEvent):void{
if (myLoader.content == null) return;
var newX:Number = e.slideXPosition * imageCanvas.width;
var newY:Number = e.slideYPosition * imageCanvas.height;
@ -141,11 +147,11 @@
if (newY <= 0) myLoader.content.y = newY;
}
private function handleSlideLoadedEvent(e:SlideEvent):void {
private function handleSlideLoadedEvent(e:SlideEvent):void{
myLoader.source = e.slide;
}
private function handleRestoreSlideEvent(e:ZoomEvent):void {
private function restoreSlideSize(e:ZoomEvent):void{
if (myLoader.content == null) return;
myLoader.content.scaleX = 1;
myLoader.content.scaleY = 1;
@ -153,25 +159,25 @@
myLoader.content.y = 0;
}
private function handleSwitchToViewerEvent(e:MadePresenterEvent):void {
private function switchToViewer(e:MadePresenterEvent):void{
this.isPresenter = false;
removeEventListener(MouseEvent.MOUSE_WHEEL, onZoom);
myLoader.removeEventListener(MouseEvent.MOUSE_DOWN, onMouseDown);
myLoader.removeEventListener(MouseEvent.MOUSE_UP, onMouseUp);
myLoader.removeEventListener(MouseEvent.MOUSE_OUT, onMouseOut);
removeEventListener(MouseEvent.MOUSE_WHEEL, zoom);
myLoader.removeEventListener(MouseEvent.MOUSE_DOWN, mouseDown);
myLoader.removeEventListener(MouseEvent.MOUSE_UP, mouseUp);
myLoader.removeEventListener(MouseEvent.MOUSE_OUT, mouseOut);
imageCanvas.removeEventListener(MouseEvent.MOUSE_MOVE, sendCursorUpdate);
}
private function handleSwitchToPresenterEvent(e:MadePresenterEvent):void {
private function switchToPresenter(e:MadePresenterEvent):void{
this.isPresenter = true;
addEventListener(MouseEvent.MOUSE_WHEEL, onZoom);
myLoader.addEventListener(MouseEvent.MOUSE_DOWN, onMouseDown);
myLoader.addEventListener(MouseEvent.MOUSE_UP, onMouseUp);
myLoader.addEventListener(MouseEvent.MOUSE_OUT, onMouseOut);
addEventListener(MouseEvent.MOUSE_WHEEL, zoom);
myLoader.addEventListener(MouseEvent.MOUSE_DOWN, mouseDown);
myLoader.addEventListener(MouseEvent.MOUSE_UP, mouseUp);
myLoader.addEventListener(MouseEvent.MOUSE_OUT, mouseOut);
imageCanvas.addEventListener(MouseEvent.MOUSE_MOVE, sendCursorUpdate);
}
public function sendCursorUpdate(e:MouseEvent):void {
public function sendCursorUpdate(e:MouseEvent):void{
if (myLoader.content == null) return;
var command:PresenterCommands = new PresenterCommands(PresenterCommands.SEND_CURSOR_UPDATE);
command.xPercent = myLoader.mouseX / myLoader.content.width;
@ -179,31 +185,81 @@
dispatchEvent(command);
}
private function handleUpdateCursorEvent(e:CursorEvent):void {
private function updateCursorCallback(e:CursorEvent):void{
if (myLoader.content == null) return;
cursor.x = myLoader.x + (e.xPercent * myLoader.content.width);
cursor.y = myLoader.y + (e.yPercent * myLoader.content.height);
cursor.x = e.xPercent * myLoader.content.width;
cursor.y = e.yPercent * myLoader.content.height;
//If cursor is off window, don't show it
if (isCursorOffWindow(e)) cursor.visible = false;
if ((e.xPercent > 1 && e.yPercent > 1) || (cursor.x > this.width || cursor.y > this.height)) cursor.visible = false;
else cursor.visible = true;
}
private function isCursorOffWindow(e:CursorEvent):Boolean {
return (e.xPercent > 1 && e.yPercent > 1) || (cursor.x > this.width || cursor.y > this.height);
}
private function hideCursor():void{
cursor.visible = false;
}
public function turnOnTextSelection():void{
slideClip = myLoader.content as MovieClip;
slideText = slideClip.textSnapshot;
myLoader.addEventListener(MouseEvent.MOUSE_DOWN, onTextMouseDown);
myLoader.addEventListener(MouseEvent.MOUSE_UP, onTextMouseUp);
myLoader.addEventListener(MouseEvent.MOUSE_OUT, onTextMouseOut);
slideText.setSelected(0, slideText.charCount, true);
}
private function onTextMouseDown(e:MouseEvent):void{
myLoader.addEventListener(MouseEvent.MOUSE_MOVE, onTextMouseMove);
slideText.setSelectColor(0xFFFF00);
firstChar = slideText.hitTestTextNearPos(slideClip.mouseX, slideClip.mouseY, 0);
slideText.setSelected(0, slideText.charCount, false);
}
private function onTextMouseMove(e:MouseEvent):void{
if (firstChar != -1){
slideText.setSelected(0, slideText.charCount, false)
lastChar = slideText.hitTestTextNearPos(slideClip.mouseX, slideClip.mouseY, 0);
if (firstChar < lastChar){
slideText.setSelected(firstChar, lastChar + 1, true);
} else{
slideText.setSelected(lastChar, firstChar + 1, true);
}
}
}
private function onTextMouseUp(e:MouseEvent):void{
myLoader.removeEventListener(MouseEvent.MOUSE_MOVE, onTextMouseMove);
if (firstChar >= 0){
lastChar = slideText.hitTestTextNearPos(slideClip.mouseX, slideClip.mouseY, 0);
if (firstChar != lastChar){
if (firstChar < lastChar){
slideText.setSelected(firstChar, lastChar + 1, true);
} else{
slideText.setSelected(lastChar, firstChar + 1, true);
}
}
firstChar = -1;
lastChar = -1;
}
myLoader.removeEventListener(MouseEvent.MOUSE_OUT, onTextMouseOut);
myLoader.removeEventListener(MouseEvent.MOUSE_MOVE, onTextMouseMove);
}
private function onTextMouseOut(e:MouseEvent):void{
myLoader.removeEventListener(MouseEvent.MOUSE_MOVE, onTextMouseMove);
slideText.setSelected(0, slideText.charCount, false);
}
]]>
</mx:Script>
<mx:Canvas id="imageCanvas" width="100%" height="100%" verticalScrollPolicy="off" horizontalScrollPolicy="off">
<mx:SWFLoader id="myLoader" width="100%" height="100%" scaleContent="false"
maintainAspectRatio="true" showBusyCursor="true" completeEffect="Fade"/>
<mx:SWFLoader id="myLoader" width="100%" height="100%"
scaleContent="false" maintainAspectRatio="true" showBusyCursor="true"
completeEffect="Fade"/>
</mx:Canvas>
</mx:VBox>