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/*
* 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 <stdio.h>
#include <sys/time.h>
#include <time.h>
#include <math.h>
#include <string.h>
extern NPNetscapeFuncs* browser;
extern ANPCanvasInterfaceV0 gCanvasI;
extern ANPLogInterfaceV0 gLogI;
extern ANPPaintInterfaceV0 gPaintI;
extern ANPTypefaceInterfaceV0 gTypefaceI;
///////////////////////////////////////////////////////////////////////////////
EventPlugin::EventPlugin(NPP inst) : SubPlugin(inst) { }
EventPlugin::~EventPlugin() { }
void EventPlugin::drawPlugin(const ANPBitmap& bitmap, const ANPRectI& clip) {
gLogI.log(kDebug_ANPLogType, " ------ %p drawing the plugin (%d,%d)",
inst(), bitmap.width, bitmap.height);
// 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<float>(bitmap.width) / W;
const float zoomFactorH = static_cast<float>(bitmap.height) / H;
// check to make sure the zoom level is uniform
if (zoomFactorW + .01 < zoomFactorH && zoomFactorW - .01 > zoomFactorH)
gLogI.log(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);
// create and clip a canvas
ANPCanvas* canvas = gCanvasI.newCanvas(&bitmap);
ANPRectF clipR;
clipR.left = clip.left;
clipR.top = clip.top;
clipR.right = clip.right;
clipR.bottom = clip.bottom;
gCanvasI.clipRect(canvas, &clipR);
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
gPaintI.deletePaint(paint);
gCanvasI.deleteCanvas(canvas);
}
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(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(kDebug_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(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: {
switch (evt->data.draw.model) {
case kBitmap_ANPDrawingModel:
drawPlugin(evt->data.draw.data.bitmap, evt->data.draw.clip);
return 1;
default:
break; // unknown drawing model
}
}
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(kError_ANPLogType, " ------ %p the plugin did not request touch events", inst());
break;
case kKey_ANPEventType:
gLogI.log(kError_ANPLogType, " ------ %p the plugin did not request key events", inst());
break;
default:
break;
}
return 0; // unknown or unhandled event
}
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