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| 830 | */ |
830 | */ |
| 831 | /* |
831 | /* |
| 832 | 5/2016 changed to 'setAttribute()' because of trouble on Chromium/Safari/IE |
832 | 5/2016 changed to 'setAttribute()' because of trouble on Chromium/Safari/IE |
| 833 | 10/2016 corrected contex-reset-flaw when using "userdraw text,color" and added inputs to the things we can remove |
833 | 10/2016 corrected contex-reset-flaw when using "userdraw text,color" and added inputs to the things we can remove |
| 834 | 7/2017 added 'userdraw clickfill,color' to removable things...one user_filling per click |
834 | 7/2017 added 'userdraw clickfill,color' to removable things...one user_filling per click |
| - | 835 | ||
| - | 836 | 7/2022: preserve div's with math (katex | wims_mathml)...hope this does not interfere with other things |
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| - | 837 | https://wimsedu.info/?topic=geometrie-interactive-avec-canvasdraw |
|
| 835 | */ |
838 | */ |
| 836 | fprintf(js_include_file,"\n/* add clear button */\ |
839 | fprintf(js_include_file,"\n/* add clear button */\ |
| 837 | clear_draw_area%d = function(){\ |
840 | clear_draw_area%d = function(){\ |
| 838 | if(typeof(fill_canvas_no) === 'number'){\ |
841 | if(typeof(fill_canvas_no) === 'number'){\ |
| 839 | var chk = document.getElementById('wims_canvas%d'+fill_canvas_no);\ |
842 | var chk = document.getElementById('wims_canvas%d'+fill_canvas_no);\ |
| Line 842... | Line 845... | ||
| 842 | fill_canvas_no--;userdraw_x.splice(p,1);userdraw_y.splice(p,1);userdraw_radius.splice(p,1);\ |
845 | fill_canvas_no--;userdraw_x.splice(p,1);userdraw_y.splice(p,1);userdraw_radius.splice(p,1);\ |
| 843 | return;\ |
846 | return;\ |
| 844 | };\ |
847 | };\ |
| 845 | };\ |
848 | };\ |
| 846 | if( typeof(context_userdraw) === 'object' ){\ |
849 | if( typeof(context_userdraw) === 'object' ){\ |
| 847 | |
850 | if(document.getElementById(canvas_div.lastChild.id).tagName == 'DIV'){\ |
| - | 851 | var mathtxt = document.getElementById(canvas_div.lastChild.id).innerHTML;\ |
|
| - | 852 | if(mathtxt.indexOf('katex') == -1 && mathtxt.indexOf('wims_mathml') == -1 || canvas_div.lastChild.id.indexOf('placed') != -1){\ |
|
| 848 | document.getElementById(canvas_div.lastChild.id).innerHTML = null;\ |
853 | document.getElementById(canvas_div.lastChild.id).innerHTML = null;\ |
| 849 | canvas_div.removeChild(document.getElementById(canvas_div.lastChild.id));\ |
854 | canvas_div.removeChild(document.getElementById(canvas_div.lastChild.id));\ |
| - | 855 | };\ |
|
| 850 | };\ |
856 | };\ |
| 851 | context_userdraw.clearRect(0,0,xsize,ysize);\ |
857 | context_userdraw.clearRect(0,0,xsize,ysize);\ |
| 852 | if( typeof(userdraw_text) !== 'undefined'){ userdraw_text = []; };\ |
858 | if( typeof(userdraw_text) !== 'undefined'){ userdraw_text = []; };\ |
| 853 | if( document.getElementById(\"canvas_input0\") ){\ |
859 | if( document.getElementById(\"canvas_input0\") ){\ |
| 854 | var p = 0;var inp;\ |
860 | var p = 0;var inp;\ |