Fixed: if the CPWebView iframe was destroyed before its HTML loader timer fired, an error would occur.

This commit is contained in:
Alexander Ljungberg
2010-08-12 23:36:25 -04:00
parent 9b37ba20a3
commit c851522536
+46 -45
View File
@@ -50,23 +50,23 @@ CPWebViewScrollNative = 2;
{
CPScrollView _scrollView;
CPView _frameView;
IFrame _iframe;
CPString _mainFrameURL;
CPArray _backwardStack;
CPArray _forwardStack;
BOOL _ignoreLoadStart;
BOOL _ignoreLoadEnd;
id _downloadDelegate;
id _frameLoadDelegate;
id _policyDelegate;
id _resourceLoadDelegate;
id _UIDelegate;
CPWebScriptObject _wso;
CPString _url;
CPString _html;
@@ -95,10 +95,10 @@ CPWebViewScrollNative = 2;
_backwardStack = [];
_forwardStack = [];
_scrollMode = CPWebViewScrollNative;
[self _initDOMWithFrame:aFrame];
}
return self;
}
@@ -106,52 +106,52 @@ CPWebViewScrollNative = 2;
{
_ignoreLoadStart = YES;
_ignoreLoadEnd = YES;
_iframe = document.createElement("iframe");
_iframe.name = "iframe_" + Math.floor(Math.random()*10000);
_iframe.style.width = "100%";
_iframe.style.height = "100%";
_iframe.style.borderWidth = "0px";
_iframe.frameBorder = "0";
[self setDrawsBackground:YES];
_loadCallback = function() {
// HACK: this block handles the case where we don't know about loads initiated by the user clicking a link
if (!_ignoreLoadStart)
{
// post the start load notification
[self _startedLoading];
if (_mainFrameURL)
[_backwardStack addObject:_mainFrameURL];
// FIXME: this doesn't actually get the right URL for different domains. Not possible due to browser security restrictions.
_mainFrameURL = _iframe.src;
_mainFrameURL = _iframe.src;
// clear the forward
[_forwardStack removeAllObjects];
}
else
_ignoreLoadStart = NO;
if (!_ignoreLoadEnd)
{
[self _finishedLoading];
}
else
_ignoreLoadEnd = NO;
[[CPRunLoop currentRunLoop] limitDateForMode:CPDefaultRunLoopMode];
}
if (_iframe.addEventListener)
_iframe.addEventListener("load", _loadCallback, false);
else if (_iframe.attachEvent)
_iframe.attachEvent("onload", _loadCallback);
_frameView = [[CPView alloc] initWithFrame:[self bounds]];
[_frameView setAutoresizingMask:CPViewWidthSizable|CPViewHeightSizable];
@@ -159,9 +159,9 @@ CPWebViewScrollNative = 2;
[_scrollView setAutohidesScrollers:YES];
[_scrollView setAutoresizingMask:CPViewWidthSizable|CPViewHeightSizable];
[_scrollView setDocumentView:_frameView];
_frameView._DOMElement.appendChild(_iframe);
[self _setScrollMode:_scrollMode];
[self addSubview:_scrollView];
@@ -169,7 +169,7 @@ CPWebViewScrollNative = 2;
- (void)setFrameSize:(CPSize)aSize
{
{
[super setFrameSize:aSize];
[self _resizeWebFrame];
}
@@ -211,7 +211,7 @@ CPWebViewScrollNative = 2;
{
var visibleRect = [_frameView visibleRect];
[_frameView setFrameSize:CGSizeMake(CGRectGetMaxX(visibleRect), CGRectGetMaxY(visibleRect))];
// try to get the document size so we can correctly set the frame
var win = null;
try { win = [self DOMWindow]; } catch (e) {}
@@ -229,7 +229,7 @@ CPWebViewScrollNative = 2;
else
{
CPLog.warn("using default size 800*1600");
[_frameView setFrameSize:CGSizeMake(800, 1600)];
}
@@ -242,7 +242,7 @@ CPWebViewScrollNative = 2;
{
if (_scrollMode == aScrollMode)
return;
[self _setScrollMode:aScrollMode];
}
@@ -252,7 +252,7 @@ CPWebViewScrollNative = 2;
_scrollMode = CPWebViewScrollNative;
else
_scrollMode = aScrollMode;
_ignoreLoadStart = YES;
_ignoreLoadEnd = YES;
@@ -263,16 +263,16 @@ CPWebViewScrollNative = 2;
{
[_scrollView setHasHorizontalScroller:YES];
[_scrollView setHasVerticalScroller:YES];
_iframe.setAttribute("scrolling", "no");
}
else
{
[_scrollView setHasHorizontalScroller:NO];
[_scrollView setHasVerticalScroller:NO];
_iframe.setAttribute("scrolling", "auto");
[_frameView setFrameSize:[_scrollView bounds].size];
}
@@ -293,13 +293,13 @@ CPWebViewScrollNative = 2;
[_frameView setFrameSize:[_scrollView contentSize]];
[self _startedLoading];
_ignoreLoadStart = YES;
_ignoreLoadEnd = NO;
_url = null;
_html = aString;
[self _load];
}
@@ -308,13 +308,13 @@ CPWebViewScrollNative = 2;
[self _setScrollMode:CPWebViewScrollNative];
[self _startedLoading];
_ignoreLoadStart = YES;
_ignoreLoadEnd = NO;
_url = _mainFrameURL;
_html = null;
[self _load];
}
@@ -335,12 +335,13 @@ CPWebViewScrollNative = 2;
_loadHTMLStringTimer = nil;
}
// need to give the browser a chance to reset iframe, otherwise we'll be document.write()-ing the previous document
// need to give the browser a chance to reset iframe, otherwise we'll be document.write()-ing the previous document
_loadHTMLStringTimer = window.setTimeout(function()
{
var win = [self DOMWindow];
win.document.write(_html);
if (win)
win.document.write(_html);
window.setTimeout(_loadCallback, 1);
}, 0);
@@ -372,7 +373,7 @@ CPWebViewScrollNative = 2;
}
- (void)setMainFrameURL:(CPString)URLString
{
{
if (_mainFrameURL)
[_backwardStack addObject:_mainFrameURL];
_mainFrameURL = URLString;
@@ -389,9 +390,9 @@ CPWebViewScrollNative = 2;
[_forwardStack addObject:_mainFrameURL];
_mainFrameURL = [_backwardStack lastObject];
[_backwardStack removeLastObject];
[self _loadMainFrameURL];
return YES;
}
return NO;
@@ -405,9 +406,9 @@ CPWebViewScrollNative = 2;
[_backwardStack addObject:_mainFrameURL];
_mainFrameURL = [_forwardStack lastObject];
[_forwardStack removeLastObject];
[self _loadMainFrameURL];
return YES;
}
return NO;
@@ -630,7 +631,7 @@ CPWebViewScrollNative = 2;
- (id)initWithCoder:(CPCoder)aCoder
{
self = [super initWithCoder:aCoder];
if (self)
{
// FIXME: encode/decode these?
@@ -638,14 +639,14 @@ CPWebViewScrollNative = 2;
_backwardStack = [];
_forwardStack = [];
_scrollMode = CPWebViewScrollNative;
#if PLATFORM(DOM)
[self _initDOMWithFrame:[self frame]];
#endif
[self setBackgroundColor:[CPColor whiteColor]];
}
return self;
}