Вот мой фрагмент javascript-файла шаблона gpsDataMap:
Код: Выделить всё
$(window).load(function(){
$('#saveMap').click(function(){
html2canvas(document.getElementById('map'), {
"logging": true, //Enable log (use Web Console for get Errors and Warnings)
"proxy":"/surveyApp/gpsDataMap/html2canvas-proxy",
useCORS:true,
"onrendered": function(canvas) {
var img = new Image();
img.onload = function() {
img.onload = null;
document.body.appendChild(img);
};
img.onerror = function() {
img.onerror = null;
if(window.console.log) {
window.console.log("Not loaded image from canvas.toDataURL");
} else {
alert("Not loaded image from canvas.toDataURL");
}
};
img.src = canvas.toDataURL("image/png");
}
});
});
});
Код: Выделить всё
import os
import datetime
from flask import Flask, request, render_template, redirect, url_for, flash, Response
from flask.json import dumps
from flask import json
from flask import g, Blueprint, session, abort
from flask_principal import Identity, identity_changed, identity_loaded, RoleNeed, AnonymousIdentity
from flask_login import LoginManager, login_user, login_required, logout_user
from app import app
from model.user_info import SurveyForms
from flask.ext.pymongo import PyMongo
from inspect import getmembers, isfunction
import formConfig
import formTree
import fieldChoices
from dashboard import dashboardData
from collections import namedtuple
from pymongo import MongoClient
from flask import request
from html2canvasproxy import * #include html2canvasproxy in your application
import urlparse
import re
surveyApp_module = Blueprint('surveyApp_module', __name__)
app.config['MONGO_HOST'] = 'localhost'
app.config['MONGO_PORT'] = 27017
app.config['MONGO_DBNAME'] = 'survey'
mongo = PyMongo(app)
h2c = None
real_path = os.getcwd() + '/static/images'
virtual_path = '/gpsDataMap/images/'
@surveyApp_module.route('/')
@login_required
def show_formList():
forms = []
forms = [form.form_name for form in SurveyForms.select().where(SurveyForms.organization_name==session['organization_id'])]
# strip .xml from string to compare with returnData
forms = [form.replace('.xml','') for form in forms]
returnData = mongo.db.collection_names()
returnData.pop(returnData.index('system.indexes'))
intersected_forms = list(set(forms).intersection(returnData))
if len(intersected_forms):
return render_template('index_pjj.html', surveyEntries=intersected_forms)
return render_template('index_pjj.html', surveyEntries=['No Survey'])
@surveyApp_module.route('/dashboard', methods=['POST'])
def dashboard():
formName = request.form['whichSurvey']
session['formName'] = formName
formtree = formTree.formParseDict(formName)
returnData = dashboardData(formName, mongo.db)
summaryData = totalSummary(formName, mongo.db)
jsonData = json.dumps(returnData)
return render_template('dashboard.html', formName=formName, formTree=formtree, returnData=returnData, summaryData=summaryData, jsonData=jsonData)
@surveyApp_module.route('/gpsDataView', methods=['POST'])
def gpsDataView():
formName = request.form['whichSurvey']
gpsFields = formConfig.survey[formName]['gpsField']
(location, fieldName, fieldSelection, fieldChoicesList) = "", "", "", []
location = request.form['location']
fieldName = request.form['fieldName']
try:
fieldSelection = request.form['fieldChoices']
except KeyError:
pass
fieldChoicesList = request.form.getlist('fieldChoicesList')
fieldData = commonFunctions.vizFieldList(formName)
totalFieldData = commonFunctions.vizFieldListFull(formName)
locationIdentifiers = fieldChoices.locationFieldChoices(formName, mongo.db)
returnData = gpsVariate.getDataforGPSMap(formName, mongo.db, gpsFields, location, fieldName, fieldSelection, fieldChoicesList)
return render_template('gpsDataMap.html', returnData=returnData, formName=formName, fieldData=fieldData, totalFieldData=totalFieldData, locationIdentifiers=locationIdentifiers)
#Copy html2canvas.js to static folder (If not use cdns)
@surveyApp_module.route('/gpsDataMap/html2canvas.js')
def html2canvas_js():
return app.send_static_file('html2canvas.js')
@surveyApp_module.route('/gpsDataMap/html2canvas-proxy')
def html2canvas_proxy():
print ("is this proxy really calling ");
h2c = html2canvasproxy(request.args.get('callback'), request.args.get('url'))
h2c.userAgent(request.headers['user_agent'])
# import pdb;pdb.set_trace()
if request.referrer is not None:
h2c.referer(request.referrer)
h2c.route(real_path, virtual_path)
r = h2c.result()
# print r['mime']
# print r['data']
return Response(r['data'], mimetype=r['mime'])
# Get images saved by html2canvasproxy
@surveyApp_module.route('/gpsDataMap/html2canvas/images/')
def images(image):
res = html2canvasproxy.resource(real_path, image)
if res is None:
return '', 404
else:
return res['data']
Код: Выделить всё
from app import app, db
from auth import *
from admin import admin
from model import *
from view import *
from filters.user_privilege import check_privilege
from filters.form_filter import filter_type
# custom filters
app.jinja_env.filters['check_privilege'] = check_privilege
app.jinja_env.filters['filter_type'] = filter_type
from surveyApp import surveyApp_module
app.register_blueprint(surveyApp_module, url_prefix='/surveyApp')
from view.accounts.login import login_module
app.register_blueprint(login_module)
if __name__ == '__main__':
app.run(port=5555)
Код: Выделить всё
html2canvas: Preload starts: finding background-images html2canvas.js:21
html2canvas: Preload: Finding images html2canvas.js:21
html2canvas: Preload: Done. html2canvas.js:21
html2canvas: start: images: 1 / 23 (failed: 0) html2canvas.js:21
html2canvas: start: images: 2 / 23 (failed: 0) html2canvas.js:21
html2canvas: start: images: 3 / 23 (failed: 0) html2canvas.js:21
html2canvas: start: images: 4 / 23 (failed: 0) html2canvas.js:21
html2canvas: start: images: 5 / 23 (failed: 0) html2canvas.js:21
html2canvas: start: images: 6 / 23 (failed: 0) html2canvas.js:21
html2canvas: start: images: 7 / 23 (failed: 0) html2canvas.js:21
html2canvas: start: images: 8 / 23 (failed: 0) html2canvas.js:21
html2canvas: start: images: 9 / 23 (failed: 0) html2canvas.js:21
html2canvas: start: images: 10 / 23 (failed: 0) html2canvas.js:21
html2canvas: start: images: 11 / 23 (failed: 0) html2canvas.js:21
html2canvas: start: images: 12 / 23 (failed: 0) html2canvas.js:21
html2canvas: start: images: 13 / 23 (failed: 0) html2canvas.js:21
html2canvas: start: images: 14 / 23 (failed: 0) html2canvas.js:21
html2canvas: start: images: 15 / 23 (failed: 0) html2canvas.js:21
html2canvas: start: images: 16 / 23 (failed: 0) html2canvas.js:21
html2canvas: start: images: 17 / 23 (failed: 0) html2canvas.js:21
html2canvas: start: images: 18 / 23 (failed: 0) html2canvas.js:21
html2canvas: start: images: 19 / 23 (failed: 0) html2canvas.js:21
html2canvas: start: images: 20 / 23 (failed: 0) html2canvas.js:21
html2canvas: start: images: 21 / 23 (failed: 0) html2canvas.js:21
html2canvas: start: images: 22 / 23 (failed: 0) html2canvas.js:21
GET http://127.0.0.1:5555/home/bhim/app/surveyApp_bhim/images/a0af53c02bd2f2aed37f1d895edcf3485117c512.png 404 (NOT FOUND) html2canvas.js:2249
html2canvas: start: images: 23 / 23 (failed: 1) html2canvas.js:21
Finished loading images: # 23 (failed: 1) html2canvas.js:21
html2canvas: Error loading background: html2canvas.js:21
html2canvas: Renderer: Canvas renderer done - returning canvas obj
Результат отладчика:
Код: Выделить всё
folder => images,
timeout => 30,
mimetype => application/javascript,
ua => Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:29.0) Gecko/20100101 Firefox/29.0,
host => 127.0.0.1:5555,
scheme => http,
ref => ,
url => http://www.google.com,
callback => console.log,
default_callback => console.log,
status => 0,
routePath => /static/images/,
savePath => /home/bhim/app/surveyApp_bhim/static/images/,
prefix => htc_,
real_extension => ,
mimes => ['image/bmp', 'image/windows-bmp', 'image/ms-bmp', 'image/jpeg', 'image/jpg', 'image/png', 'image/gif', 'text/html', 'application/xhtml', 'application/xhtml+xml']
[img]https:// i.sstatic.net/UIeUZ.png[/img]
Маркер не захватывается.
Подробнее здесь: https://stackoverflow.com/questions/240 ... -using-htm
