Ionic FabricJs Problem with access to function
ionViewDidEnter(){
this.loadCanvas();
}
loadCanvas(){
canvas.on('mouse:down', function(e){
this.canvasMouseDown(e);
});
}
canvasMouseDown(e){
console.log(this.lock);
console.log(this.pausePanning);
if(!this.lock){
this.pausePanning = true;
}
}
That is code. Every time when I click I get error. Like below
Ionic error
I tried every combination and still have this same problem
angularjs ionic-framework ionic3 fabricjs
asked Nov 15 '18 at 11:54
Szymon SzymczynaSzymon Szymczyna
132
add a comment |
ionViewDidEnter(){
this.loadCanvas();
}
loadCanvas(){
canvas.on('mouse:down', function(e){
this.canvasMouseDown(e);
});
}
canvasMouseDown(e){
console.log(this.lock);
console.log(this.pausePanning);
if(!this.lock){
this.pausePanning = true;
}
}
That is code. Every time when I click I get error. Like below
Ionic error
I tried every combination and still have this same problem
angularjs ionic-framework ionic3 fabricjs
asked Nov 15 '18 at 11:54
Szymon SzymczynaSzymon Szymczyna
132
loadCanvas(){ let self = this; canvas.on('mouse:down', function(e){ self.canvasMouseDown(e); }); }
– Durga
Nov 15 '18 at 12:28
add a comment |
ionViewDidEnter(){
this.loadCanvas();
}
loadCanvas(){
canvas.on('mouse:down', function(e){
this.canvasMouseDown(e);
});
}
canvasMouseDown(e){
console.log(this.lock);
console.log(this.pausePanning);
if(!this.lock){
this.pausePanning = true;
}
}
That is code. Every time when I click I get error. Like below
Ionic error
I tried every combination and still have this same problem
angularjs ionic-framework ionic3 fabricjs
asked Nov 15 '18 at 11:54
Szymon SzymczynaSzymon Szymczyna
132
ionViewDidEnter(){
this.loadCanvas();
}
loadCanvas(){
canvas.on('mouse:down', function(e){
this.canvasMouseDown(e);
});
}
canvasMouseDown(e){
console.log(this.lock);
console.log(this.pausePanning);
if(!this.lock){
this.pausePanning = true;
}
}
That is code. Every time when I click I get error. Like below
Ionic error
I tried every combination and still have this same problem
angularjs ionic-framework ionic3 fabricjs
angularjs ionic-framework ionic3 fabricjs
asked Nov 15 '18 at 11:54
Szymon SzymczynaSzymon Szymczyna
132
asked Nov 15 '18 at 11:54
Szymon SzymczynaSzymon Szymczyna
132
asked Nov 15 '18 at 11:54
Szymon SzymczynaSzymon Szymczyna
132
asked Nov 15 '18 at 11:54
Szymon SzymczynaSzymon Szymczyna
132
asked Nov 15 '18 at 11:54
Szymon SzymczynaSzymon Szymczyna
132
132
loadCanvas(){ let self = this; canvas.on('mouse:down', function(e){ self.canvasMouseDown(e); }); }
– Durga
Nov 15 '18 at 12:28
add a comment |
loadCanvas(){ let self = this; canvas.on('mouse:down', function(e){ self.canvasMouseDown(e); }); }
– Durga
Nov 15 '18 at 12:28
loadCanvas(){ let self = this; canvas.on('mouse:down', function(e){ self.canvasMouseDown(e); }); }– Durga
Nov 15 '18 at 12:28
loadCanvas(){ let self = this; canvas.on('mouse:down', function(e){ self.canvasMouseDown(e); }); }– Durga
Nov 15 '18 at 12:28
add a comment |
1 Answer
1
active
oldest
votes
Fabric events are bound to an object which triggers them, which means that here:
canvas.on('mouse:down', function(e){
this.canvasMouseDown(e);
});
this is an instance of canvas. And when you're calling this.canvasMouseDown(), you're essentially calling canvas.canvasMouseDown(), so this is where the error comes from. Try using the arrow function as the event handler:
loadCanvas(){
canvas.on('mouse:down', (e) => {
this.canvasMouseDown(e);
});
}
answered Nov 15 '18 at 12:36
shkapershkaper
1,3511814
Amazing thanks +1
– Szymon Szymczyna
Nov 15 '18 at 13:18
add a comment |
Your Answer
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
Fabric events are bound to an object which triggers them, which means that here:
canvas.on('mouse:down', function(e){
this.canvasMouseDown(e);
});
this is an instance of canvas. And when you're calling this.canvasMouseDown(), you're essentially calling canvas.canvasMouseDown(), so this is where the error comes from. Try using the arrow function as the event handler:
loadCanvas(){
canvas.on('mouse:down', (e) => {
this.canvasMouseDown(e);
});
}
answered Nov 15 '18 at 12:36
shkapershkaper
1,3511814
Amazing thanks +1
– Szymon Szymczyna
Nov 15 '18 at 13:18
add a comment |
Fabric events are bound to an object which triggers them, which means that here:
canvas.on('mouse:down', function(e){
this.canvasMouseDown(e);
});
this is an instance of canvas. And when you're calling this.canvasMouseDown(), you're essentially calling canvas.canvasMouseDown(), so this is where the error comes from. Try using the arrow function as the event handler:
loadCanvas(){
canvas.on('mouse:down', (e) => {
this.canvasMouseDown(e);
});
}
answered Nov 15 '18 at 12:36
shkapershkaper
1,3511814
Amazing thanks +1
– Szymon Szymczyna
Nov 15 '18 at 13:18
add a comment |
Fabric events are bound to an object which triggers them, which means that here:
canvas.on('mouse:down', function(e){
this.canvasMouseDown(e);
});
this is an instance of canvas. And when you're calling this.canvasMouseDown(), you're essentially calling canvas.canvasMouseDown(), so this is where the error comes from. Try using the arrow function as the event handler:
loadCanvas(){
canvas.on('mouse:down', (e) => {
this.canvasMouseDown(e);
});
}
answered Nov 15 '18 at 12:36
shkapershkaper
1,3511814
Fabric events are bound to an object which triggers them, which means that here:
canvas.on('mouse:down', function(e){
this.canvasMouseDown(e);
});
this is an instance of canvas. And when you're calling this.canvasMouseDown(), you're essentially calling canvas.canvasMouseDown(), so this is where the error comes from. Try using the arrow function as the event handler:
loadCanvas(){
canvas.on('mouse:down', (e) => {
this.canvasMouseDown(e);
});
}
answered Nov 15 '18 at 12:36
shkapershkaper
1,3511814
edited Nov 15 '18 at 12:49
answered Nov 15 '18 at 12:36
shkapershkaper
1,3511814
answered Nov 15 '18 at 12:36
shkapershkaper
1,3511814
answered Nov 15 '18 at 12:36
shkapershkaper
1,3511814
1,3511814
Amazing thanks +1
– Szymon Szymczyna
Nov 15 '18 at 13:18
add a comment |
Amazing thanks +1
– Szymon Szymczyna
Nov 15 '18 at 13:18
Amazing thanks +1
– Szymon Szymczyna
Nov 15 '18 at 13:18
Amazing thanks +1
– Szymon Szymczyna
Nov 15 '18 at 13:18
add a comment |
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loadCanvas(){ let self = this; canvas.on('mouse:down', function(e){ self.canvasMouseDown(e); }); }– Durga
Nov 15 '18 at 12:28