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Draft: chat bubbles and some smaller UI improvements #1

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om merged 4 commits from a2/chatcontrol-live-demo:asbjørn-additions into master 2022-08-17 16:30:59 +00:00
Conversation 1 Commits 4 Files changed 1 +55 -25
1 changed files with 55 additions and 25 deletions
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80
chatapp.svg
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@ -6,7 +6,7 @@
xmlns:xlink="http://www.w3.org/1999/xlink"
width="300"
height="500"
viewBox="300 0 300 500"
viewBox="0 0 300 500"
onload="start_chat('Ven')"
overflow="auto"
>
@ -22,7 +22,7 @@ const svgns = "http://www.w3.org/2000/svg";
const width = 300;
const height = 500;
const line_height = 5;
const line_height = 6;
const max_visible_lines = 10;
const messages_y_offset = 20;
const typing_speed = 70;
@ -65,16 +65,19 @@ function split_text_into_lines(text, upper_line_length) {
///
/// ChatMessages's are owned by a Dialog.
function ChatMessage(message_text, is_myself) {
let lines = split_text_into_lines(message_text, 14);
let tspans = [];
let lines = split_text_into_lines(message_text, 28);
let tspans = []
let bubbles = [];
let container = document.getElementById('messages');
/// Render the chat message on the screen
this.draw = function() {
let text = document.createElementNS(svgns, 'text');
let x = (is_myself)?10 :50;
let x = (is_myself ? 190 : 110);
text.setAttribute('x', `${x}%`);
text.setAttribute('font-size', '14px');
text.setAttribute('text-anchor', is_myself ? 'end' : 'start');
lines.forEach(function(line) {
let y = tspan_y_pos(chat_lines_count++);
@ -90,6 +93,26 @@ function ChatMessage(message_text, is_myself) {
tspans.push(tspan);
});
// done making text
// it must be in the DOM for getBBox() to work
container.appendChild(text);
// make chat bubble
const padding = 6;
const textbox = text.getBBox();
const y_percent = Math.round(((textbox.y - padding) / height) * 100);
const bubble = document.createElementNS(svgns, 'rect');
bubble.setAttribute('x', textbox.x-padding);
bubble.setAttribute('y', `${y_percent}%`);
bubble.setAttribute('width', textbox.width + 2*padding);
bubble.setAttribute('height', textbox.height + 2*padding);
bubble.setAttribute('rx', 8);
bubble.setAttribute('fill', 'black');
bubbles.push(bubble);
// put stuff in dom in the right order
container.appendChild(bubble);
container.removeChild(text);
container.appendChild(text);
}
@ -115,6 +138,11 @@ function ChatMessage(message_text, is_myself) {
}
tspan.setAttribute('visibility', visibility);
});
bubbles.forEach(bubble => {
const old = parseInt(bubble.getAttribute('y').split('%')[0]);
const new_value = old + by;
bubble.setAttribute('y', `${new_value}%`);
});
}
}
@ -133,9 +161,11 @@ function swipe_viewport() {
let coords = svg.getAttribute('viewBox').split(' ');
let x = parseInt(coords.shift());
if(x == 0) {
// moving from messages to contacts
var step = 5;
var end = width;
} else {
// moving from contacts to messages
var step = -5;
var end = 0;
}
@ -217,21 +247,21 @@ async function dialog_ven() {
await d.you('Har du hørt om den nye EU lov "ChatControl"?');
await d.me("nej, det har jeg ikke");
await d.me("hvad handler det om?");
await d.you('EU comissionen planlægger at læse alle chatbeskeder i EUen');
await d.you('EU kommissionen planlægger at læse alle chatbeskeder i EU');
await d.me('Ja, men vi krypterer jo vores beskeder? Tough luck!');
await d.you('Det tager de højde for. Aflytningen vil ske før krypteringen på din lokale telefon!');
await d.me('Det lyder overhoved ikke rart. Hvorfor vil de gøre det?');
await d.you('Det tager de højde for. Aflytningen vil ske før krypteringen på din telefon!');
await d.me('Det lyder overhovedet ikke rart. Hvorfor vil de gøre det?');
await d.you('De siger at det er for at beskytte børn på nettet.');
await d.you('Men det giver ikke meget mening');
await d.me('Alle vores beskeder skal scannes på grund af børn på nettet? Det lyder dumt!');
await d.you('Her kan du finde mere informationer om det:');
await d.you('Her kan du læse mere om det:');
await d.you('https://chatcontrol.eu');
}
async function dialog_mor() {
let d = new Dialog('Mor');
await d.you("Jeg har fundet nogle gamle familiebilleder fra vores ferie 10 år siden");
await d.you("Her spiller du på stranden");
await d.you("Her leger du på stranden");
await d.you("(naked stick figure image here)");
}
@ -239,30 +269,30 @@ async function dialog_kaereste() {
let d = new Dialog('Kæreste');
await d.me('hej smukkeste');
await d.you('hej, jeg har lige tænkt på dig!');
await d.you('og derfor har jeg lavet an sexy billede');
await d.you('og derfor har jeg taget et sexet billede');
await d.you('(silly naked stick figure image here)')
}
]]>
</script>
<!-- [left] contact name view -->
<rect x="0" y="0" width="100%" height="10%" fill="yellow" />
<polyline points="0,20 20,0 20,40" fill="blue" onclick="swipe_viewport()" />
<text x="50" y="30" id="contact_indicator">loading...</text>
<!-- [right] contact name view -->
<rect x="100%" y="0" width="100%" height="10%" fill="yellow" />
<polyline points="300,20 320,0 320,40" fill="blue" onclick="swipe_viewport()" /> <!-- XXX: these polyline points depend on the svg width -->
<text x="125%" y="30" id="contact_indicator">loading...</text>
<!-- [left] messages view -->
<rect x="0" y="10%" width="100%" height="90%" style="stroke: green; stroke-width: 10px" fill="blue" />
<rect id="messages_background" x="5%" y="15%" z="2" width="90%" height="85%" fill="pink" />
<!-- [right] messages view -->
<rect x="100%" y="10%" width="100%" height="90%" style="stroke: green; stroke-width: 10px" fill="blue" />
<rect id="messages_background" x="105%" y="15%" z="2" width="90%" height="85%" fill="pink" />
<g id="messages"></g>
<!-- [right] contact list -->
<rect x="100%" y="0" width="100%" height="10%" fill="yellow" />
<text x="120%" y="30">Dine kontakter</text>
<rect x="100%" y="10%" width="100%" height="100%" style="stroke: green; stroke-width: 10px" fill="aqua" />
<!-- [left] contact list -->
<rect x="0" y="0" width="100%" height="10%" fill="yellow" />
<text x="20%" y="30">Dine kontakter</text>
<rect x="0" y="10%" width="100%" height="100%" style="stroke: green; stroke-width: 10px" fill="aqua" />
<text x="105%" y="15%" onclick="start_chat('Ven')">Ven</text>
<text x="105%" y="20%" onclick="start_chat('Mor')">Mor</text>
<text x="105%" y="25%" onclick="start_chat('Kæreste')">Kæreste&#10084;</text>
<text x="5%" y="15%" onclick="start_chat('Ven')">Ven</text>
<text x="5%" y="20%" onclick="start_chat('Mor')">Mor</text>
<text x="5%" y="25%" onclick="start_chat('Kæreste')">Kæreste&#10084;</text>
</svg>

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