/* * Copyright 2009, The Android Open Source Project * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "EventPlugin.h" #include "android_npapi.h" #include #include #include #include #include extern NPNetscapeFuncs* browser; extern ANPCanvasInterfaceV0 gCanvasI; extern ANPLogInterfaceV0 gLogI; extern ANPPaintInterfaceV0 gPaintI; extern ANPSurfaceInterfaceV0 gSurfaceI; extern ANPTypefaceInterfaceV0 gTypefaceI; /////////////////////////////////////////////////////////////////////////////// EventPlugin::EventPlugin(NPP inst) : SubPlugin(inst) { // initialize the drawing surface m_surfaceReady = false; m_surface = gSurfaceI.newRasterSurface(inst, kRGB_565_ANPBitmapFormat, false); if(!m_surface) gLogI.log(inst, kError_ANPLogType, "----%p Unable to create Raster surface", inst); } EventPlugin::~EventPlugin() { gSurfaceI.deleteSurface(m_surface); } void EventPlugin::drawPlugin(int surfaceWidth, int surfaceHeight) { gLogI.log(inst(), kDebug_ANPLogType, " ------ %p drawing the plugin (%d,%d)", inst(), surfaceWidth, surfaceHeight); // get the plugin's dimensions according to the DOM PluginObject *obj = (PluginObject*) inst()->pdata; const int W = obj->window->width; const int H = obj->window->height; // compute the current zoom level const float zoomFactorW = static_cast(surfaceWidth) / W; const float zoomFactorH = static_cast(surfaceHeight) / H; // check to make sure the zoom level is uniform if (zoomFactorW + .01 < zoomFactorH && zoomFactorW - .01 > zoomFactorH) gLogI.log(inst(), kError_ANPLogType, " ------ %p zoom is out of sync (%f,%f)", inst(), zoomFactorW, zoomFactorH); // scale the variables based on the zoom level const int fontSize = (int)(zoomFactorW * 16); const int leftMargin = (int)(zoomFactorW * 10); // lock the surface ANPBitmap bitmap; if (!m_surfaceReady || !gSurfaceI.lock(m_surface, &bitmap, NULL)) { gLogI.log(inst(), kError_ANPLogType, " ------ %p unable to lock the plugin", inst()); return; } // create a canvas ANPCanvas* canvas = gCanvasI.newCanvas(&bitmap); gCanvasI.drawColor(canvas, 0xFFFFFFFF); // configure the paint ANPPaint* paint = gPaintI.newPaint(); gPaintI.setFlags(paint, gPaintI.getFlags(paint) | kAntiAlias_ANPPaintFlag); gPaintI.setColor(paint, 0xFF0000FF); gPaintI.setTextSize(paint, fontSize); // configure the font ANPTypeface* tf = gTypefaceI.createFromName("serif", kItalic_ANPTypefaceStyle); gPaintI.setTypeface(paint, tf); gTypefaceI.unref(tf); // retrieve the font metrics ANPFontMetrics fm; gPaintI.getFontMetrics(paint, &fm); // write text on the canvas const char c[] = "Browser Test Plugin"; gCanvasI.drawText(canvas, c, sizeof(c)-1, leftMargin, -fm.fTop, paint); // clean up variables and unlock the surface gPaintI.deletePaint(paint); gCanvasI.deleteCanvas(canvas); gSurfaceI.unlock(m_surface); } void EventPlugin::printToDiv(const char* text, int length) { // Get the plugin's DOM object NPObject* windowObject = NULL; browser->getvalue(inst(), NPNVWindowNPObject, &windowObject); if (!windowObject) gLogI.log(inst(), kError_ANPLogType, " ------ %p Unable to retrieve DOM Window", inst()); // create a string (JS code) that is stored in memory allocated by the browser const char* jsBegin = "var outputDiv = document.getElementById('eventOutput'); outputDiv.innerHTML += ' "; const char* jsEnd = "';"; // allocate memory and configure pointers int totalLength = strlen(jsBegin) + length + strlen(jsEnd); char* beginMem = (char*)browser->memalloc(totalLength); char* middleMem = beginMem + strlen(jsBegin); char* endMem = middleMem + length; // copy into the allocated memory memcpy(beginMem, jsBegin, strlen(jsBegin)); memcpy(middleMem, text, length); memcpy(endMem, jsEnd, strlen(jsEnd)); gLogI.log(inst(), kError_ANPLogType, "text: %.*s\n", totalLength, (char*)beginMem); // execute the javascript in the plugin's DOM object NPString script = { (char*)beginMem, totalLength }; NPVariant scriptVariant; if (!browser->evaluate(inst(), windowObject, &script, &scriptVariant)) gLogI.log(inst(), kError_ANPLogType, " ------ %p Unable to eval the JS.", inst()); // free the memory allocated within the browser browser->memfree(beginMem); } int16 EventPlugin::handleEvent(const ANPEvent* evt) { switch (evt->eventType) { case kDraw_ANPEventType: gLogI.log(inst(), kError_ANPLogType, " ------ %p the plugin did not request draw events", inst()); break; case kSurface_ANPEventType: switch (evt->data.surface.action) { case kCreated_ANPSurfaceAction: m_surfaceReady = true; return 1; case kDestroyed_ANPSurfaceAction: m_surfaceReady = false; return 1; case kChanged_ANPSurfaceAction: drawPlugin(evt->data.surface.data.changed.width, evt->data.surface.data.changed.height); return 1; } break; case kLifecycle_ANPEventType: switch (evt->data.lifecycle.action) { case kOnLoad_ANPLifecycleAction: { char msg[] = "lifecycle-onLoad"; printToDiv(msg, strlen(msg)); break; } case kGainFocus_ANPLifecycleAction: { char msg[] = "lifecycle-gainFocus"; printToDiv(msg, strlen(msg)); break; } case kLoseFocus_ANPLifecycleAction: { char msg[] = "lifecycle-loseFocus"; printToDiv(msg, strlen(msg)); break; } } return 1; case kTouch_ANPEventType: gLogI.log(inst(), kError_ANPLogType, " ------ %p the plugin did not request touch events", inst()); break; case kKey_ANPEventType: gLogI.log(inst(), kError_ANPLogType, " ------ %p the plugin did not request key events", inst()); break; default: break; } return 0; // unknown or unhandled event }