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Diffstat (limited to 'Examples/NetscapeInputMethodPlugin/main.m')
-rw-r--r-- | Examples/NetscapeInputMethodPlugin/main.m | 398 |
1 files changed, 398 insertions, 0 deletions
diff --git a/Examples/NetscapeInputMethodPlugin/main.m b/Examples/NetscapeInputMethodPlugin/main.m new file mode 100644 index 0000000..0adc21b --- /dev/null +++ b/Examples/NetscapeInputMethodPlugin/main.m @@ -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 Appleās 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; +} |