WebKitExamplePlugins/NetscapeInputMethodPlugin/main.m
changeset 0 4f2f89ce4247
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebKitExamplePlugins/NetscapeInputMethodPlugin/main.m	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,398 @@
+/*
+ IMPORTANT:  This Apple software is supplied to you by Apple Computer, Inc. ("Apple") in
+ consideration of your agreement to the following terms, and your use, installation, 
+ modification or redistribution of this Apple software constitutes acceptance of these 
+ terms.  If you do not agree with these terms, please do not use, install, modify or 
+ redistribute this Apple software.
+ 
+ In consideration of your agreement to abide by the following terms, and subject to these 
+ terms, Apple grants you a personal, non-exclusive license, under Apple’s copyrights in 
+ this original Apple software (the "Apple Software"), to use, reproduce, modify and 
+ redistribute the Apple Software, with or without modifications, in source and/or binary 
+ forms; provided that if you redistribute the Apple Software in its entirety and without 
+ modifications, you must retain this notice and the following text and disclaimers in all 
+ such redistributions of the Apple Software.  Neither the name, trademarks, service marks 
+ or logos of Apple Computer, Inc. may be used to endorse or promote products derived from 
+ the Apple Software without specific prior written permission from Apple. Except as expressly
+ stated in this notice, no other rights or licenses, express or implied, are granted by Apple
+ herein, including but not limited to any patent rights that may be infringed by your 
+ derivative works or by other works in which the Apple Software may be incorporated.
+ 
+ The Apple Software is provided by Apple on an "AS IS" basis.  APPLE MAKES NO WARRANTIES, 
+ EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, 
+ MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS 
+ USE AND OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS.
+ 
+ IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL 
+ DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 
+ OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE, 
+ REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED AND 
+ WHETHER UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE), STRICT LIABILITY OR 
+ OTHERWISE, EVEN IF APPLE HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#import <WebKit/npapi.h>
+#import <WebKit/npfunctions.h>
+#import <WebKit/npruntime.h>
+
+#import <Cocoa/Cocoa.h>
+
+// Browser function table
+static NPNetscapeFuncs* browser;
+
+// Structure for per-instance storage
+typedef struct PluginObject
+{
+    NPP npp;
+    
+    NPWindow window;
+    
+    bool pluginHasFocus;
+    
+    bool textFieldHasFocus;
+    NSRect textFieldRect;
+    
+    NSRange selectedRange;
+    NSTextStorage *textStorage;
+    NSLayoutManager *layoutManager;
+    NSTextContainer *textContainer;
+    
+} PluginObject;
+
+NPError NPP_New(NPMIMEType pluginType, NPP instance, uint16 mode, int16 argc, char* argn[], char* argv[], NPSavedData* saved);
+NPError NPP_Destroy(NPP instance, NPSavedData** save);
+NPError NPP_SetWindow(NPP instance, NPWindow* window);
+NPError NPP_NewStream(NPP instance, NPMIMEType type, NPStream* stream, NPBool seekable, uint16* stype);
+NPError NPP_DestroyStream(NPP instance, NPStream* stream, NPReason reason);
+int32 NPP_WriteReady(NPP instance, NPStream* stream);
+int32 NPP_Write(NPP instance, NPStream* stream, int32 offset, int32 len, void* buffer);
+void NPP_StreamAsFile(NPP instance, NPStream* stream, const char* fname);
+void NPP_Print(NPP instance, NPPrint* platformPrint);
+int16 NPP_HandleEvent(NPP instance, void* event);
+void NPP_URLNotify(NPP instance, const char* URL, NPReason reason, void* notifyData);
+NPError NPP_GetValue(NPP instance, NPPVariable variable, void* value);
+NPError NPP_SetValue(NPP instance, NPNVariable variable, void* value);
+
+#pragma export on
+// Mach-o entry points
+NPError NP_Initialize(NPNetscapeFuncs* browserFuncs);
+NPError NP_GetEntryPoints(NPPluginFuncs* pluginFuncs);
+void NP_Shutdown(void);
+#pragma export off
+
+NPError NP_Initialize(NPNetscapeFuncs* browserFuncs)
+{
+    browser = browserFuncs;
+    return NPERR_NO_ERROR;
+}
+
+NPError NP_GetEntryPoints(NPPluginFuncs* pluginFuncs)
+{
+    pluginFuncs->version = 11;
+    pluginFuncs->size = sizeof(pluginFuncs);
+    pluginFuncs->newp = NPP_New;
+    pluginFuncs->destroy = NPP_Destroy;
+    pluginFuncs->setwindow = NPP_SetWindow;
+    pluginFuncs->newstream = NPP_NewStream;
+    pluginFuncs->destroystream = NPP_DestroyStream;
+    pluginFuncs->asfile = NPP_StreamAsFile;
+    pluginFuncs->writeready = NPP_WriteReady;
+    pluginFuncs->write = (NPP_WriteProcPtr)NPP_Write;
+    pluginFuncs->print = NPP_Print;
+    pluginFuncs->event = NPP_HandleEvent;
+    pluginFuncs->urlnotify = NPP_URLNotify;
+    pluginFuncs->getvalue = NPP_GetValue;
+    pluginFuncs->setvalue = NPP_SetValue;
+    
+    return NPERR_NO_ERROR;
+}
+
+void NP_Shutdown(void)
+{
+}
+
+NPError NPP_New(NPMIMEType pluginType, NPP instance, uint16 mode, int16 argc, char* argn[], char* argv[], NPSavedData* saved)
+{
+    // Create per-instance storage
+    PluginObject* obj = (PluginObject*)malloc(sizeof(PluginObject));
+    bzero(obj, sizeof(PluginObject));
+    
+    obj->npp = instance;
+    instance->pdata = obj;
+    
+    // Ask the browser if it supports the CoreGraphics drawing model
+    NPBool supportsCoreGraphics;
+    if (browser->getvalue(instance, NPNVsupportsCoreGraphicsBool, &supportsCoreGraphics) != NPERR_NO_ERROR)
+        supportsCoreGraphics = FALSE;
+    
+    if (!supportsCoreGraphics)
+        return NPERR_INCOMPATIBLE_VERSION_ERROR;
+    
+    // If the browser supports the CoreGraphics drawing model, enable it.
+    browser->setvalue(instance, NPPVpluginDrawingModel, (void*)NPDrawingModelCoreGraphics);
+
+    // If the browser supports the Cocoa event model, enable it.
+    NPBool supportsCocoa;
+    if (browser->getvalue(instance, NPNVsupportsCocoaBool, &supportsCocoa) != NPERR_NO_ERROR)
+        supportsCocoa = FALSE;
+    
+    if (!supportsCocoa)
+        return NPERR_INCOMPATIBLE_VERSION_ERROR;
+    
+    browser->setvalue(instance, NPPVpluginEventModel, (void*)NPEventModelCocoa);
+
+    obj->textFieldRect = NSMakeRect(10, 10, 200, 100);
+
+    obj->textStorage = [[NSTextStorage alloc] initWithString:@""];
+    obj->layoutManager = [[NSLayoutManager alloc] init];
+    [obj->textStorage addLayoutManager:obj->layoutManager];
+    
+    obj->textContainer = [[NSTextContainer alloc] initWithContainerSize:obj->textFieldRect.size];
+    [obj->layoutManager addTextContainer:obj->textContainer];
+
+    obj->selectedRange.location = [obj->textStorage length];
+    
+    return NPERR_NO_ERROR;
+}
+
+NPError NPP_Destroy(NPP instance, NPSavedData** save)
+{
+    // Free per-instance storage
+    PluginObject* obj = instance->pdata;
+    
+    [obj->textStorage release];
+    [obj->layoutManager release];
+    
+    free(obj);
+    
+    return NPERR_NO_ERROR;
+}
+
+NPError NPP_SetWindow(NPP instance, NPWindow* window)
+{
+    PluginObject* obj = instance->pdata;
+    obj->window = *window;
+
+    return NPERR_NO_ERROR;
+}
+ 
+
+NPError NPP_NewStream(NPP instance, NPMIMEType type, NPStream* stream, NPBool seekable, uint16* stype)
+{
+    *stype = NP_ASFILEONLY;
+    return NPERR_NO_ERROR;
+}
+
+NPError NPP_DestroyStream(NPP instance, NPStream* stream, NPReason reason)
+{
+    return NPERR_NO_ERROR;
+}
+
+int32 NPP_WriteReady(NPP instance, NPStream* stream)
+{
+    return 0;
+}
+
+int32 NPP_Write(NPP instance, NPStream* stream, int32 offset, int32 len, void* buffer)
+{
+    return 0;
+}
+
+void NPP_StreamAsFile(NPP instance, NPStream* stream, const char* fname)
+{
+}
+
+void NPP_Print(NPP instance, NPPrint* platformPrint)
+{
+
+}
+
+static void handleDraw(PluginObject* obj, NPCocoaEvent *event)
+{
+    NSGraphicsContext *oldContext = [[NSGraphicsContext currentContext] retain];
+    
+    NSGraphicsContext *context = [NSGraphicsContext graphicsContextWithGraphicsPort:event->data.draw.context
+                                                                            flipped:YES];
+
+
+    [NSGraphicsContext setCurrentContext:context];
+    
+    NSRect rect = NSMakeRect(0, 0, obj->window.width, obj->window.height);
+    
+    [[NSColor lightGrayColor] set];
+    [NSBezierPath fillRect:rect];
+
+    if (obj->pluginHasFocus) {
+        [[NSColor blackColor] set];
+        [NSBezierPath strokeRect:rect];
+    }
+    
+    [[NSColor whiteColor] set];
+    [NSBezierPath fillRect:obj->textFieldRect];
+
+    // Draw the text
+    NSRange glyphRange = [obj->layoutManager glyphRangeForTextContainer:obj->textContainer];
+    if (glyphRange.length > 0) {
+        [obj->layoutManager drawBackgroundForGlyphRange:glyphRange atPoint:obj->textFieldRect.origin];
+        [obj->layoutManager drawGlyphsForGlyphRange:glyphRange atPoint:obj->textFieldRect.origin];
+    }
+    
+    NSBezierPath *textInputBorder = [NSBezierPath bezierPathWithRect:obj->textFieldRect];
+    [[NSColor blackColor] set];
+    
+    if (obj->pluginHasFocus && obj->textFieldHasFocus)
+        [textInputBorder setLineWidth:2];
+    else
+        [textInputBorder setLineWidth:1];
+    
+    [textInputBorder stroke];
+    
+    if (obj->pluginHasFocus && obj->textFieldHasFocus) {
+        NSUInteger rectCount;
+        NSRect *rectArray = [obj->layoutManager rectArrayForCharacterRange:obj->selectedRange
+                                            withinSelectedCharacterRange:obj->selectedRange
+                                                        inTextContainer:obj->textContainer
+                                                                rectCount:&rectCount];
+        
+        [[NSColor blackColor] set];
+        for (unsigned i = 0; i < rectCount; i++) {
+            NSRect rect = rectArray[i];
+            rect.origin.x += obj->textFieldRect.origin.x;
+            rect.origin.y += obj->textFieldRect.origin.y;
+            
+            [NSBezierPath strokeRect:rect];
+        }        
+    }
+    
+    [NSGraphicsContext setCurrentContext:oldContext];
+}
+
+static void invalidatePlugin(PluginObject* obj)
+{
+    NPRect rect;
+    rect.left = 0;
+    rect.top = 0;
+    rect.right = obj->window.width;
+    rect.bottom = obj->window.height;
+    
+    browser->invalidaterect(obj->npp, &rect);    
+}
+
+static void handleFocusChanged(NPCocoaEvent* cocoaEvent, PluginObject* obj)
+{
+    obj->pluginHasFocus = cocoaEvent->data.focus.hasFocus;
+    
+    invalidatePlugin(obj);
+}
+
+static void handleMouseMoved(NPCocoaEvent* cocoaEvent, PluginObject* obj)
+{
+    NSPoint point = NSMakePoint(cocoaEvent->data.mouse.pluginX, cocoaEvent->data.mouse.pluginY);
+    
+    if (NSPointInRect(point, obj->textFieldRect))
+        [[NSCursor IBeamCursor] set];
+    else
+        [[NSCursor arrowCursor] set];
+}
+
+static void handleMouseDown(NPCocoaEvent* cocoaEvent, PluginObject* obj) 
+{
+    NSPoint point = NSMakePoint(cocoaEvent->data.mouse.pluginX, cocoaEvent->data.mouse.pluginY);
+    
+    obj->textFieldHasFocus = NSPointInRect(point, obj->textFieldRect);
+    
+    invalidatePlugin(obj);
+}
+
+static int16_t handleTextFieldKeyDown(NPCocoaEvent* event, PluginObject* obj)
+{
+    NSString *string = (NSString *)event->data.key.charactersIgnoringModifiers;
+    
+    unichar c = [string length] > 0 ? [string characterAtIndex:0] : 0;
+    
+    switch (c) {
+        case NSLeftArrowFunctionKey:
+            if (obj->selectedRange.location > 0) {
+                obj->selectedRange.location--;
+                invalidatePlugin(obj);
+            }
+            return 1;
+            
+        case NSRightArrowFunctionKey:
+            if (obj->selectedRange.location < [obj->textStorage length]) {
+                obj->selectedRange.location++;  
+                invalidatePlugin(obj);
+            }
+                
+            return 1;
+            
+        default:
+            // Return 0 and let the text input system handle it.
+            return 0;
+    }
+}
+
+
+static int16_t handleTextInput(NPCocoaEvent* event, PluginObject* obj)
+{
+    NSString *string = (NSString *)event->data.text.text;
+    NSRange range = obj->selectedRange;
+        
+    [obj->textStorage replaceCharactersInRange:range withString:string];
+        
+    obj->selectedRange.location = range.location + [string length];
+    obj->selectedRange.length = 0;
+
+    invalidatePlugin(obj);
+    
+    return 1;
+}
+
+int16 NPP_HandleEvent(NPP instance, void* event)
+{
+    PluginObject* obj = instance->pdata;
+
+    NPCocoaEvent* cocoaEvent = event;
+    
+    switch (cocoaEvent->type) {
+        case NPCocoaEventDrawRect:
+            handleDraw(obj, cocoaEvent);
+            return 1;
+        case NPCocoaEventFocusChanged:
+            handleFocusChanged(cocoaEvent, obj);
+            return 1;
+        case NPCocoaEventMouseMoved:
+            handleMouseMoved(cocoaEvent, obj);
+            return 1;
+        case NPCocoaEventMouseDown:
+            handleMouseDown(cocoaEvent, obj);
+            return 1;
+        case NPCocoaEventKeyDown:
+            // If the text field has focus we ignore the event, causing it
+            // to be sent to the input manager.
+            if (obj->textFieldHasFocus)
+                return handleTextFieldKeyDown(cocoaEvent, obj);
+            else
+                return 1;
+        case NPCocoaEventTextInput:
+            return handleTextInput(cocoaEvent, obj);
+            return 1;
+                
+    }
+    
+    return 0;
+}
+
+void NPP_URLNotify(NPP instance, const char* url, NPReason reason, void* notifyData)
+{
+}
+
+NPError NPP_GetValue(NPP instance, NPPVariable variable, void* value)
+{
+    return NPERR_GENERIC_ERROR;
+}
+
+NPError NPP_SetValue(NPP instance, NPNVariable variable, void* value)
+{
+    return NPERR_GENERIC_ERROR;
+}